The
best way to check if the account name is available is to try logging in with that account name. For example, the search bar says there is no account named "monkey", however, by trying to log in, you find the account does exist and that the active pet is ChiChi.
You can even go further to find out why the account is searchable by trying to enter a password (anything will do, be it "a" or "nyahnyahI'mtryingtoputapasswordin"). You'll get a page proclaiming something like
Quote:
This account has been FROZEN for the following reason:
You MAY have either fallen for a scam or submitted your account information to a fake login page. If you'd like information on getting your account back, please contact us by clicking here.