First off, if you think about it, it's not the XP that should be nerfed. It's the influence.
Why?
Because in theory, you could learn quite a bit from a super realistic virtual reality machine.
But why on Earth would you gain Influence (for your heroic actions, the currency of CoH) for things that never happened? It would be like us getting famous in real life for being superheroes because we play CoH. It doesn't reduce crime or rescue people in the 'real life' of Paragon city, any more than I'm reducing crime in D.C. by taking down virtual villains.
I certainly wouldn't get paid for playing a game. Neither should superheroes.
So, experience, sure. INFLUENCE, no.
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Second, I think you mean a "poll sort of topic". A "pole sort of topic" hopefully includes a fist full of dollar bills, adult beverages and dancer gyrating to bad music.