Merlin, welcome to BFP!
Please don't think you are being picked on, a lot of people just read the title of a thread and then jump....it happens to all us! Keeps us on our toes!
Butches and straight women? It takes all kinds. For some, yes it may be easier to be seen with a Butch who passes, and some may not really be straight, just don't know they are queer yet?
Best to you and don't get discouraged here!
I have visited London several times and communication is a bit different, but definitely workable and fun!