For me, I feel like their are different types of trolling. To be honest, I will joke around with irl friends.
Stuff that doesn't really cause any harm, and is more of a "prank" is ok. Its just when it gets insultive where I don't like it.
I like watching a good prank/joke every know and then, but when you insult me for the sake of your own humor. Then their is something wrong with you.