It's extremely important to use pronouns correctly. Using he/him is taking away from who Caitlyn feels she is, it's like saying her identity doesn't matter to you (although, I know you didn't mean it that way) Bruce/he/him aren't terms to use anymore when talking about Caitlyn. See, pronouns are the problem with me and trans people. I mean, I'd gladly call them what they want to be called but once I'm used to calling someone a guy or using the male pronouns, it's hard for me to be all like "Oh, she did this today," you know? I'll have to keep thinking to call him a her instead. But... that's just me and eventually once more people in the limelight start changing (because this has been a large step for famous people who want to, all the support), I'll get used to it eventually and I'll start using proper pronouns.