I loved Dame Edna back in the day but I knew it was Barry Humphries
I guess only time will tell if Harry is gay or not. It's so hard to call as so much evidence of him being into women unless that is a double blind. Ironically enough I really don't think the fan base would care. I guess Syco hasn't moved with the times.
I do have a good gaydar (don't laugh but it is true) and it doesn't go off when I see pictures of Harry. You heard it here first
I think three members of 1D are gay myself : Harry, Niall and Louis (just guesswork but there has been the occasional hint here and there about all three).