Many smaller wikis are cracking down on cross-wiki accounts to stop impersonation. If you create an account on another Wikimedia Project, make sure it is linked from your main account. Otherwise, it may get blocked. An easy way to do all this is to create a master list of your accounts at Meta and link that page to all your other sites. This will, hopefully, make it harder for you to be impersonated, and easier for your accounts to be identified.

A tool that can be used to identify accounts that aren't yours can be found at: http://tools.wikimedia.de/~interiot/cgi-bin/queries/SUL.

Thanks, Casey Brown Cbrown1023