Charlotte Webb wrote:
Does this work for blocking too? Apparently the colon
":" also causes
problems, see logs:
http://en.wikipedia.org/w/index.php?title=Special:Log&page=User:WP:ANI
http://en.wikipedia.org/w/index.php?title=Special:Log&page=User:WPANI
That's how this unblockable user was able to do page-move vandalism
continuously for over 30 minutes.
http://en.wikipedia.org/w/index.php?title=Special:Log&user=WPANI&li…
I'd argue that usernames containing deprecated characters should be
automatically renamed or locked out pending a rename.
—C.W.
I don't think it was the colon, but that it contained a namespace name
("WP:"). Probably intruduced by Bug 5280.