Googling for form spam
Google, in their effort to index the universe, is currently experimenting with breaking past forms to get deeper content.
There are a number of details in the blog post below, but here are the basics:
- Google is working with an experimental version of their normal bot.
- They avoid forms that have a password field (make sure your password fields are correctly indicated), or other obviously personal data (usernames, IDs)
- They will still adhere to robots.txt, nofollow and noindex
- However, the bot will try to auto-fill preference requests, searches, etc.