Hopeling

Rule of 5's applies to LotG +rech, but it's considered its own kind of set bonus, separate from other 7.5% bonuses. So you can slot 5 LotGs and 5 sets that give 7.5% bonuses and benefit from all of them, but 6 LotGs or 6 7.5 sets will only give you 5 bonuses. I tested this personally a few minutes ago due to a similar conversation (possibly the same one you saw) in Freedom help chat.

Spring Attack actually has a 120s recharge, so it doesn't sync up nicely with Build Up/Lightning Rod (unless you deliberately underslot them for recharge, which would be silly).

Well, they have to put all those doorless SG bases somewhere.

Numina and Miracle uniques are indeed procs, not globals. This is why they almost always should go in Health or a similar passive - putting them in a healing power that isn't on all the time means you only get the buff while the power is on (for toggles) or for 120s thereafter (for clicks). It's also why their buffs stack for 120s when you zone.

Probably Catch a Breath, meaning a blue inspiration. Usually seen as CaB.

In other games, I've found melee/support types often don't work well, and go through many iterations and changes as the devs try to figure out just what they want the class to do. This is at least partly because the two things are kind of at odds with each other. To implement it well would thus require a way to make them play nicely together: for example, maybe a melee/support AT could have a mechanic like a Fury bar that fills as they use their attacks, but instead of giving a scaling damage bonus, it gives a scaling Power Boost effect. Maybe the support powers would also have a Defiance effect, so it would flow both ways.

However, CoH plays very differently from the games I'm drawing my experience from in this, and so it might work with very little alteration. After all, some support combos already work well in melee range.

The Day Job AH teleporters are the only applicable things I can think of. I know I've occasionally wasted a charge by having an auto power go off during the interrupt portion. The Day Job rez power might also be interruptable, I don't recall... with the Resuscitator crafted power and the ability to combine insps, it's not even worth using these days.

A /psi dominator can probably avoid most end problems, between Domination's refill and Drain Psyche.

Ultimately it's going to depend more on your power sets than your archetype, though. For melee characters, for example, Electric Armor mitigates endurance problems with Energize, and outright laughs at them with Power Sink. It's also basically immune to sappers. Unfortunately, even the sets with powerful endurance management tools usually don't get them until level 20+. I find that the best solution to low-level endurance problems is proper slotting and Recovery Serums.

It's ok to skip hasten on almost any character. The character may be improved by hasten, but very rarely is it necessary for the character to function.

As noted, Night Widow attacks aren't especially cheap, and they're fast, so the endurance-per-second used is high. Running "only" 5 toggles probably isn't helping, either; I would stay away from the Tactical Trainings except Maneuvers until you can improve your endurance management.

Most of your endurance use (way more than half, for most builds) comes from your attacks, not your toggles, so take some of the endredux in the toggles and move it to the attacks.

Odd... just to add a data point, I used my Pocket D Teleporter as a rogue on a hero TF just a couple days ago without issues. I don't know if that means the bug doesn't affect Pocket D, or it's very recent, or it's irregular, or what.

I would guess that procs in Distortion Field either get one chance to fire when the power is activated, or at best get a chance to fire every 10 seconds (which I believe is how similar field powers like Caltrops work?).

If you want to get technical about it, you can figure out how much end/sec you spend on your attacks and other powers, add it to the cost of your toggles, and compare to the amount of endurance you recover. If your consumption is much higher than your recovery (as a rule of thumb I use "1 end/sec or more difference"), you'll run dry pretty easily, although some builds can handle it with things like Conserve Power or Power Sink. If your recovery exceeds your consumption, you can sustain your attacks forever.

But usually you don't need to be sustainable forever, just as long as a fight lasts. When I'm not building specifically to be indefinitely sustainable I usually just eyeball it - are powers slotted with appropriate amounts of endredux? Proper slotting in Stamina, and possibly other relevant powers? Numina and Miracle uniques, Performance Shifter proc? If yes to all, probably good to go.

Destiny recharge is 2 minutes, unmodifiable.

That's correct, Reactive Core gives -2.5% res per application, and stacks 4 times.

Only Diamagnetic is currently on the list of known issues; I would hope that the people in charge have seen the numerous posts about the bug and are aware that it is affecting all of the Interfaces and not just Diamagnetic.

The pets surviving is usually not a problem, but I play mostly melee types, so my taunt auras keep them pretty safe. When they do get hit, I can often save them with Destiny (although I suppose you can't do that if you have Ageless).

There's no such thing as "damage debuff resistance" directly, but normal damage resistance resists damage debuffs. So if you put a -50% damage debuff on an AV with 50% lethal resistance, the debuff to its lethal damage will be cut in half by its resistance, to 25%. If the same AV had 0% energy resistance, any energy attacks it used would take the full 50% debuff.

Currently, Reactive Radial is the best Interface without question, because all the other ones are broken and do not function at all. But presumably that will be fixed soon.

You're right that the various Lore pets are good at different things, and some do more DPS than others. I've only personally used 3: IDF, Warworks, and Cimerorans. I was underwhelmed by the IDF compared to the other two: they have a mix of melee and ranged attacks, but they seem to go into 'melee mode' or 'ranged mode' and not use their other attacks, which means a lot of idle time. Warworks and Cimerorans are wrecking machines though.

Well, Arbiter Rein won't talk to my vigilante 50 scrapper.

...hm, this requires more testing. It would be a lot easier to get Patron pools if I only had to go Vigilante and back (2 alignment changes, 4 days) instead of all the way around (4 alignment changes, 8 days) - and more conceptually palatable for many of my characters; the vigilante -> villain tips are very dark.

I have a character I can check this with tonight, if nobody can confirm it before then.