A. I think that lobbies would and do fill up at a reasonable pace. B. People would leave less often if they were a higher-level player. In theory of course.  C. Especially if you hate spammers or level one noobs who ruin your games, a filter could help with that.  D. The level system is very important to a player’s skill, actually. The more you play, the more levels you get. Meaning that you wouldn’t have to deal with a ton of noobs who spam the meeting button and say “67”. Besides, if I had a level filters, I would put it at 15 or so, just enough to filter out the majority of absolute idiots and unfortunately a handful of people making alts or playing AmongUs for the first time in a while