Let me just stick my oar in here briefly. Usual disclaimer - details vary from jurisdiction to jurisdiction, so I'm just looking at common law and generally-recognised international copyright law.
Basically I'm not too fussed about this at all.
1) Your copyright
You have copyright in anything you post that is original to you (that includes original photos, text, photoshops etc). Licensing these to NeoGAF through the TOS does not take that away. So you have not lost any legal rights if somebody steals it in whole or in part.
2) Licence to NeoGAF
The revised TOS give NeoGAF a perpetual etc etc licence to republish etc etc blah blah. It does not mean that NeoGAF gets your copyright. It does mean that you can't sue for copyright breach either NeoGAF or anyone that NeoGAF lets use it.
The retrospectively applicable TOS looks a bit dodgy - but no more so than many others out there (and they haven't really been tested by the courts, so I am unsure of the impact). It looks a lot of words, but they are mostly in practice harmless except for two things.
First: there's a potential exposure if NeoGAF ever gets taken over by someone less scrupulously straightforward than EvilLore. I'd prefer if the licence were non-transferable rather than transferable, so that (a) we are protected in the event of a takeover (b) EvilLore gets an extra negotiating point to avoid a takeover if he wants to (c) nobody (e.g. Kotaku) will be able to argue they had a transferred licence and syndicate your post off to umpteen million other places.
Second: there's a potential issue if a copied post gives ground for action by a third party. For example, there are some posts on GAF (including some of mine) that are potentially libellous if taken out of the context of the whole thread. And you could end up on the wrong end of a libel case. I don't think that's dreadfully likely though, and in any event EvilLore is not stupid enough to licence such posts out anyway.
3) There's a way around it (there's ALWAYS a way around it)
NeoGAF can only claim to be able to licence the copyright of something that is original to the poster. If the poster doesn't have copyright in the material posted, then NeoGAF can't acquire any such rights by virtue of the TOS.
So, if you're really worried about this, write out your posts and have your wife post them on her account. They're not her copyright, so NeoGAF acquires no rights in them whatsoever.
If you don't have a wife - go get one.