I'd like to see something like that as well but not even on the mmorpg level rather any good multiplayer level. Just some free web games on it would be cool.
Defends on what you want. I personally thought Marvel Ultimate Alliance was great (got to have the Iron Man), and if you liked the X-Men Legends games, it's basically more of the same. Justice League Heroes is basically the same thing, but with the DC Universe instead (and it's lame...ok, so I prefer Marvel). I'd start there. FYI, avoid the Wii version of MUA, the control scheme is completely broken.
Another one that comes to mind is Freedom Force vs. the Third Reich, which is similar to some of the other games mentioned (basically an isometric action RPG) with more emphasis on character-building. This one has more of a silver age feel to it.
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.