Basically just don't be a complete idiot on the mic.
Examples:
1. Saying "I wonder what he banned?" in a best-of-5 set
2. Making inside jokes that only 1% of the stream viewers will understand
3. Chatting with stream viewers instead of talking about the match
I will punch any commentator that I see do one of these things...
omfg this.
MW commentary specifically is so *** , glad to see you're making an effort on changing a lot of these things.
Its always annoying to hear **** riding in commentaries(drppvsmango hugs/ken commentary)
Or even side conversations with other people, I mean I don't watch matches to watch a match and hear people converse on random nonsense.. If that were the case please save the trouble and time of spending money for audio equipment for useless conversational purposes over a grand finals set.
Sometimes I would watch a set, see a player do something smart or some amazing combo and I listen in on the commentary to address something and some guy is continuing on about some player he played who used puff all the time, its like are you even watching the match?