In some online forums there's a practice welcoming a new member when they make their first post (e.g. StackExchange). At face value it would seem... welcoming.
It always rubbed me the wrong way though, like the welcomer is trying to establish a hierarchy or draw attention away from the contents of my message itself.
Are welcomes a positive for some people? Or is this like starting Slack conversations with "Hey, how's it going?"
I believe fingering is what Americans would call getting to third base.