We are so lucky to be able to talk with people from all over the world, let's make an extra effort to keep our communications kind and respectful.
1) Remember you are communicating with another human being. There's a person on the other end of your typing. This may seem obvious, but it is very easy to forget.
2) If you are making a joke, let everyone know. Humor can be especially hard to understand across cultures and languages. Simply stating "that's a joke" can be very helpful.
3) Correct grammar helps avoid misunderstandings. This is especially true here on ipernity where DeepL will be used to translate your words.