When a low ELO player asks for example: Why didn't (piece) go to (place) and checkmate? They get turned down or ridiculed. Instead of doing this tell them why that move is bad and don't discourage or tell them that they are "negative ELO". This is a huge problem in chess. Remember, just because you are a high ELO, doesn't make you smarter than everybody below your ELO.
How huge is it? Haven't seen that happen so much
i mostly happens in the daily puzzle comments

Remember, just because you are a high ELO, doesn't make you smarter than everybody below your ELO.
Uh, it kind of does make them smarter.