Board Thread:Support Requests - Designing Your Wikia/@comment-27263600-20151214212605/@comment-1647694-20151215021229

Harrypottercatlover wrote: ...It still reappears twice though...

It shouldn't do that if you're only using ~

Go back to Special:Preferences, delete everything in the "Custom signature" box, add Harrypottercatlover (talk) then save and try again.