"The username violates our guidelines"

After reading all of these I see it is currently a common issue, don't know if it will work for you, but after I signed out and then tried again to use my name it worked, although actually, I had to sign out twice then it let me use my name.

All I see is this with absolutely now help in how to fix it. And this doesn't even make sense?

"This is the name from your Microsoft account. It will appear next to any of your posts." Right? I assume my "Name" is supposed to be where that blank under my picture is? So it seems like it's blank? It seems like everything is filled out on my page. All I wanted to do was to like someone's comments. It shouldn't be this hard.

Microsoft like most companies reaches a certain point, and they just don't care about their customers. That's all there is to it.

Microsoft Support... Any answer would be appreciated.

I too have the same issue. When the dialog comes up to respond to a post, I get the screen saying my user name violates. On this screen Username is blank.

On the profile screen I have used real name and a ficticious one, and each was saved and verified, but the result is the same. When you try to post, it doesn't fill in the username from the profile.

Actually, my experience is posting anything that supports Biden is flagged.