In other Stack Exchange sites (mostly on TeX website), I have seen that the users with longer period of membership welcome newer users. I really like this action as this warms the new users' heart and helps them to feel safe to stay in a friendly environment website.
However, I can see that welcome comments are rarely found on our website. They are only posted when we want to inform new users that they have to edit their questions or improve their answers. Simply welcome posted comments are also in the danger of being flagged and deleted as a too chatty comment.
By posting this question, I want to ask users to welcome new users by posting a simple Welcome to Academia website! comment and we leave them and do not delete those comments. This will help our community be more friendly and have nicer look.
Please post your answers if you feel this suggestion is a bad etiquette for Academia, or how we can build a more friendly community.