Well he's ignorant because it's not GLBT anymore it's LGBTQI and a knick knack paddywack give the dog a bone, ooops, that part is a song. Anyway according to DU it's L lesbian G gay B bisexual T trangender, Q questioning and I intersex, so it's obvious the OP is being insensitive to some.
ETA: Can't remember the thread but it was posted here a couple of months ago.