Mine is me@[fullname].[tld] and I still kind of regret it because no one expects such a short set of characters before the @ sign. Even many websites don't. It's never been rejected but rather it breaks basic personal details masking. Because they often mask an email address replacing all but the first and last characters of the username portion with asterisks and leaving the domain fully exposed...

Not to mention that I've been told by a couple people that they find it to be an awkward email address. Sending to "me" from their perspective should mean sending to themselves.