$bbuserinfo[username], you do not have permission to access this page. This could be

[Endless]

The message when you try to access a forum you don't have the permission for or a thread that was just moved to such a forum with the link left behind (*cough*staff inconsistency*cough*) displays "$bbuserinfo[username], you do not have permission to access this page. This could be due to one of several reasons" instead of the proper user name.

I blame BoB. Or clout.

[Yamaneko]

The link to that thread was not left behind.

[eestlinc]

I found this right after the upgrade and let BoB know, but I guess it's a vB issue.

maybe you were trying to read it right when it got moved.

[crono_logical]

Yeah, known issue that occurs in vB's own templates too for us :p

[eestlinc]

Might be one of the known vB bugs. I'll look into it later.

[Old Manus]

What about this?

<img src="http://img.photobucket.com/albums/v491/oldmanus/benned.jpg" alt="onwed">

[-N-]

Or this? (http://www.loki7.com/banned404.html)