trolling is a deliberately offensive online post with the aim to annoy someone or to try and make someone angry
How to prevent Trolling
Trolling is very easy to avoid. You can basically just ignore the troller, or you can block the troller so they stop annoying you.
Trolling can be funny for other people at times, but it is annoying for the receiver. Overall, you can easily stop people from trolling you by either blocking them on whatever website you are or you can just ignore them.