This is the bottom-line:
Games are designed to be fun, entertaining and give the customer what they want. If you have even ONE person out there (not to mention hundreds) that want to experience all the content of this game on one character...than that is their right. It hurts NO ONE to allow this while it obvoiusly hurts many people to limit it. If I want to be able to do every badge/arc, team, and do SF then I should be able to. I should not have to waste my time planning out what content to omit. I should not have to kill myself into debt just to experience the full effects of this game. I should not have to tell my Super Group I can't team with them because I'm about to out-level my contact. I should not have to run through missions completing only the objective to try and stay a lower level. If you have even one person that is willing to get no XP to complete past-content then IMHO the devs have no right to take that decision from that person. For the people who like having limited content...well that's great just do one contact and move on; but for those of us who are OCD and want to experience it all well that should be our prerogative. I think its the devs obligation to either 1) scale content so you can complete it at any level or 2) allow us to go back and finish each arc for every character.
Sorry to be on a "soap-box" but I just think it's ridiculous I'm having to waste my time scouring these boards to plan out what I can and can not do for something I pay good money to have FUN with. Now how do I send this to the CEO of Cryptic?