a handshake is a formality, it’s something you do to formalize an interaction, we’re formalizing an interaction on a platform that is so personally disconnected it might as well be irrelevant to begin with.
This isn’t two people in a room, you don’t need to get someones attention by saying “hey” you don’t need to open up to them by offering your hand for a handshake, you’re both there mutually for the purposes of talking, why wouldn’t you get straight to talking?