Google-bot submits forms

Google-bot already knows how to parse Flash and Javascript on our websites, extracting URLs to index. And now it's been oficially announced, that Google starts submitting forms, filling the fields with keywords, playing with options, and indexing the results.

Google submits only GET forms, that have no login/password fields. So if you don't want the robot to fill your database with junk, rewrite your forms to POST.