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Apparently fixed, judging by going to twitter.com/explore and searching for "Memphis".

Not everyone who tweets it gets blocked. It's not clear why.

I don't have a Twitter account anymore, so I couldn't test it.

Wrong!

You can always create an account!

This is a completely legitimate reason to do so.

I don't think that's at all a healthy response, given my history.

It is not fixed yet. Twitter lets you decide if you want to appeal the block or delete the tweet. Many people will appeal.