This is not a fun post to write.
There is a member in this forum who is continuously mildly abusive towards new users. The answers and comments are just short of the line of being "rude and abusive", but they are cranky, passive-aggressive and definitively not friendly.
I worry about how we greet new users, but that is only one aspect of the matter. I myself get irritated and discouraged when reviewing first posts and constantly get exposed to this kind of behaviour in the comments from this one and same user.
I suspect the mods and quite a few users know what I'm talking about.
More generally, in this kind of situation, is there anything we can do to address such behaviour, preferably without discouraging this individual's (positive) participation and contribution to the site?