I'm a bit hazy on what the apparent difference is between bisexual and pansexual other than, perhaps in keeping with this thread, people identifying as pansexuals consider bisexuality to be somewhat more rigid in the gender/sex binary (attracted to females, attracted to males) while they themselves would consider their attraction to be towards anyone of any variation of gender presentation. I'd had enough ridicule in my time over my orientation that I at least try to keep an open mind about the labels of others, as long as nobody is actually getting hurt over it.