It's true. It's asking me to pay 0.001 bitcoins to edit the wiki, or roughly $0.57. I'd personally prefer to see the same system the Bitcointalk forums used to have, where you just have to have your account active for 3 hours or something before you can edit. (Or go out of the Newbie forum, as it was here.)
Oddly, I just noticed the page upped the price to 0.003 bitcoins, which is kind of lame.
it's an antispam measure, and a pretty effective one at that. so... blame the spammers. the inconsistency in the payment amount is just something we have to fix. it is 0.001 BTC presently, i think (will verify and get back to you).
if you really can't afford 50 cents to prove you're not a spammer, feel free to post a request on the wiki subforum,
https://bitcointalk.org/index.php?board=168.0, with the following info:
- nature of your request ('i want edit rights')
- your wiki account username
- the languages you want to edit (the language wikis each has separate group rights - we hope to fix this soon)
You'll then be granted edit privileges as soon as one of the admins notices your request and finds the time to act on it.