I've been a Signal beta tester on iOS for as long as I remember, knowing that they were going to introduce usernames, and I wanted to get my (relatively common) name as my username. Now they finally introduced it, but they require it to end in at least 2 digits "a choice intended to help keep usernames egalitarian and minimize spoofing".
Edit: this is not actually a serious problem for me, don't worry! Rather, I think it's funny. And honestly I kind of like having the numbers required, it's a good idea. It does remove a lot of the vanity from usernames.
Edit: this is not actually a serious problem for me, don't worry! Rather, I think it's funny. And honestly I kind of like having the numbers required, it's a good idea. It does remove a lot of the vanity from usernames.