Censorship is dumb but required by a lot of games to avoid higher age ratings. A ridiculous example- my friend tried to name himself "Horse" in Elden Ring but got "**rse". This is the Scunthorpe problem.

Heh. I was once asked to implement a test version of a system like this. It was reverted after the CEO couldn't log in on the new build and I showed exactly why it was the system's fault.