1) Limit the number of times the same chat command can be used in a given timeframe. For example, once every 10 seconds. This prevents the "nicejobnicejobnicejob" nonsense that plagues the chat. Don't limit different commands to this timeframe though, since there are times when you'll need to say something like "MP at 5%! Fall back!" in quick succession.

2) Even though queues might be longer, please let the matchmaking system rank us with one tier below and above our current one.