Lol. Funny story, I'm one of the folks at Riot who trains other people how to moderate our player labs. We talk about how to promote good conversation, how to manage the room effectively, etc. And I have ONE rule I always enforce to my trainees:
"The only thing that will lose you respect faster than not creating rules...is creating rules that you don't enforce."
So I'll have to hard pass on the "tell them they'll get banned but don't implement it" lol. But I like your initiative ;).
And seriously, I get you. Something is for sure better than nothing. We're already breaking up the penalty stuff into a few different phases so we can roll things out sooner rather than later. (But every time we break it down into a little deliverable, that means it delays getting the whole system out to players...and we genuinely believe the whole system is the best thing. So we don't want to delay it too much).
Hope that makes sense :)