I think there's a lot that can be done that will be more effective than that.
https://kotaku.com/5889415/this-is-what-a-gamers-sexual-hara... http://www.businessinsider.com/the-esports-racism-problem-20...
etc. There's dozens of these stories covered, which means there's probably hundreds of incidents at the top levels, and thousands or tens of thousands among people just started out.
The most popular and financially successful streamer in the world has normalized straight-up racism.