Is LJ freaking out or is it me?

I tried to comment on a post and got a message that I have been banned from doing so.  This is surprising considering that I'm a friend of this person and have no idea why I would have been banned (without being unfriended).

Has anyone else gotten similar messages when trying to comment?

FWIW, if you have received such a message from me, there is something strange going on because I have not banned anyone...