In all seriousness, I guess I can see where Mixer is coming from and they have different rules depending on which age rating the stream is classified in. The rules are pretty severe though.
Probably because resetti/games livejournalists bagged hard on Twitch for having rules about this that were too vague. So Mixer made sure everything was a clear as possible and put in different levels based on the stream rating....and now they are seen as being too strict.
Once again, these people are just complaining to complain. No other reason.