Well for starters, it doesn’t matter if you are falsely reported. Despite belief to the contrary, Blizzard verifies reports. I have been reported by several players from this sick Deathmatch play a few months back:
Nothing ever came of it.
It has been publicly stated that Blizzard is developing ways to collect evidence of voice chat:
This is a myth. Every time Blizzard has addressed a claim they have the evidence to back it up:
To conclude, I strongly recommend that anyone with a BlizzCon virtual ticket (or is going to BlizzCon live) to make plans to watch the upcoming “Play Nice, Play Fair” panel where Blizzard will be addressing many of the tools they use to help keep Blizzard games a friendly place to play for everyone.
