^ This sort of thing.
Funny to some, offensive, intimidating or at least disrespectful to others.
Don't forget, a lot of us have been around for a long time and know when someone is kidding, or venting, or drunk, or just generally lippy and opinionated. Unless you are willing to hang around long enough to get that we can come across as a bunch of argumentative, abusive, macho cocks.
Not saying that is good or bad, it's just not that hard to imagine us putting more delicate people off.