There was a problem with wiki spammers, which is why you have a complicated process to sign up for the wiki... It isn't. much of a problem any longer since the change. Please realize that the wiki is a work in progress,... it's only as complete as the users and devs make it. This is an open source community project, after all.
Once you get your account problem straightened out, please help to clean things up a bit... Just don't go crazy with it... Help by cleaning up phrases, paragraphs, punctuation, etc. ... until you are confident that you can make beneficial substantive changes.