All off topic discussions go here. Everything from the funny thing your cat did to your favorite tv shows. Non-programming computer questions are ok too.
The Topic title is WTF though, which is an abbreviation of "What the fck?". What exactly this topic is about is a mystery, BTW usually means "By the Way" which is all the more confusing...
Perhaps he posted something, realized that there's no way for deleting your own threads in Mega-Tokyo, and edited it to read "btw? ???" instead of his original message?
'round here, it stands for Belasting op Toegevoegde Waarde, meaning the tax they put on anything you buy, either being 6%, 13% or 21% (although nearly everything's got 21%)