That’s your opinion, but they’ve been allowing that username for over 15 years (just look at the Roblox user profile I linked above), so why shouldn’t it be allowed as a display name too?
I already explained above why it’s appropriate, and I even gave a real-world example to back it up—if the name were actually inappropriate, it would have been removed a long time ago. The word itself isn’t inappropriate, and the moderators clearly acknowledge that.
But honestly, this isn’t even just about whether it’s allowed or not. The real issue here is a filter adjustment problem, which is exactly what this report is addressing.
As for the rest of your reply—telling me to just “submit feedback”—that’s nonsense. This is actually a bug in the filter system, and it’s something we can and should report from here.
There are already multiple bug reports about cases where words that should be allowed are being blocked. In case you’re new to the DevForum, here are a few relevant links: