Why can't I edit a GlassFish Wiki page?

I'm registered and logged in but I can't edit a wiki page – why not?

You might not have write access. If you've registered, logged in, and still can't edit a page (don't see Edit as an option at the bottom of the page), contact [wiki@glassfish.java.net] and request that write access be granted to your account. This step is also listed on the GlassFish Wiki registration page and unfortunately became necessary due to increasing wiki spam and vandalism. Vince also talks about this.