I’ve seen several new account registrations (many with e-mail addresses ending in .ru) with suspicious usernames. I’ve deleted all accounts with usernames I did not recognize (under the assumption that these accounts are created by spambots) in an effort to prevent unsolicited advertisements on the site.
If you are a real life human being and interested in creating an account, please use the Contact page to send me a very brief message to let me know you’re not a spambot. Even something as simple as “Yes, I’m a real human being” will suffice.
This method will still allow users to register new accounts while still keeping our user records clear of spambots. If this method doesn’t pan out, I may look at an alternative approach (though I don’t know what form that approach would take).