How come Twitch doesn't give specific reason why people get banned?

How can streamers learn their lesson what they did wrong? How can a viewer Learn their lesson from not getting IP banned? if they don't explain in detail of why they got banned.

they got all the logs.. they have all the vods why can't they show us ?

I would sue twitch for not providing this detail. This is some peoples jobs and twitch think it's a joke.