Anonymous edits are allowed on the wiki, you don't have to register to do stuff there. There are several guys watching for spammers (including me, but the other guys usually beat me to it).
I'd still prefer to see the information all made available to anonymous users. Iirc, the only reason tank's ever disabled downloads from here was to deal with people abusing the privilege, posting pictures and then linking them from somewhere else. This isn't your mirror service, basically. I don't know, he might have a different attitude about it and I'm just reading him wrong, but the wiki is definitely intended to allow people to use completely anonymously. The only exceptions are to deal with spam. (There are technically two communities I'm talking about, although there is a lot of overlap between the forum community and the wiki community, so much so that differentiating them is almost useless, but there are a few people on the wiki that don't come here and don't want to)
Anyway, I'd like to know exactly why you don't feel comfortable editing the wiki. We try to make it a place for everyone to contribute whatever they have to contribute, and to use whatever they need. (So it's communist, arrrrr!) So to make it better, obviously we need to know what causes people to not want to post there...