Please No Architect Entertainment when this game goes live. In my eyes that did more harm than good. IF you want people to be able to create missions then ok good, just dont let actual XP get awarded to them. If a reward is what they are looking for then let it be a few influence/money or something like that. If people want to create there own missions thats fine let them and hold a vote once a month/quarter and have the people vote on the favorite mission and give that person some super special item (badge, title, gift) but please, pretty please dont let people be able to power level from AE. I have seen people go from lvl 1 to near 50 in a day or two.
Smoker6- Fire/Ice blaster-Protector
Avenger of Heroes- Broadsword/inv Scrapper- Protector
Given that they have already discussed providing a mission creator that, as much as possible, will be like what they themselves will use to design missions, it will probably make more sense to focus on the ways you think they could discourage the behavior that harmed you. There was some interesting discussion in http://cityoftitans.com/forum/so-one-will-exist-and-if-so-what-will-it-allow (including posts by some MWM folks) that you may find interesting, in that regard.
Global: @Second Chances
SG: Fusion Force
"And it's not what I wanted
Oh no, it's not what I planned
See it's not where I thought I'd be
It's just where I am"