Any decent site will know their regulars, how well they play etc and will balance teams accordingly making sure there are strong players who will help and mentor the new players. Most regulars to site know and understand this as they do this week in, week out.
Players can at times be clicky, but that comes from playing together often and is expected, but I've always experienced people who didn't come in a decent sized group will always be drawn into a group of regulars. Show me a regular who doesn't like to show off their kit or talk kit/game to anyone.
