My nickname is "Biene" (bee), which is way more common than you would think. So when I tried to redister anywhere, usually Biene was taken, and something like dieBiene (the bee) was also taken, and I could only use something like "biene28", and sometimes that, too was taken. So I decided to use eine_Biene (a bee), which is a bit more uncommon and usually available, and because underscores don't/didn't work in the fediverse now I'm @einebiene.