What's something you used to do/see/say but don't anymore because you don't feel it's right?
Me personally? I've become much less tolerant of sexist humor. Back in the day, cracking a joke at women's expense was pretty common when I was a teen. As I've matured and become aware to the horrific extent of toxicity and bigotry pervading all tiers of our individualistic society, I've come to see how exclusionarly and objectifying that sort of 'humor' really is, and I regret it deeply.
Depends on the situation. In the corporate world I watch everything I say. When alone or with friends, not very much.
Don't beat yourself up too much for the behaviours and humor of your past. Times change, people grow. Sometimes a behaviour sticks, and thats ok too. We are still human.
Certainly is. Depends entirely on the behavior. Walking around saying racist shit? Not ok, ever.
Using some phrases that are not well received anymore while you are with your friends? Fine if everyone involved is fine with it.
If you want to say "homophobic" jokes with your close friends in closed walls, that's ok for me, but how are you acting outside those walls? If you say homophobic jokes in closed walls, but then outside you dont accept homosexual men, then there is a problem there too.