Stupid Name. Strike One against it.
I checked the site and it is stands right now, it is about as organized as a somebody learning XML would set up. Lack of coherent content. And what is with the alien brain theme? It is too adolescent to attract serious gamers (as it stands for right now). Strike Two.
Nothing screams community or members to me. First impressions being lasting ones, I think some people will give it a pass. And me more than likely, though I am trying hard to not be judgemental. Strike Three.
ENWorld will not be threatened by Gleemax. I expect they will get the same demographic audience that aleady frequents the WOTC message boards right now. And that is not a selling point as I find the signal to noise ratio on the WOTC message boards not to my liking.