(Regarding this)
What would happen if a streamer got help from a chatter who used a levelviewer but didn't ask the chatter for help?
What about if the streamer requested help? Would that invalidate the run? Would the first scenario invalidate it?
This is a question I've had on my mind for a while.
After talking about it for awhile, we decided that if it appears that you use that info. to your advantage that your run will be invalid (even though this is a kinda sucky decision to make). So if it's a pick a pipe or something or you have a hidden door hidden somewhere and someone talks about it in chat, and you then go in that door/pipe, your run will be invalid. We figured this would be fair since most people wouldn't play through a RNG heavy level in the first place in most runs, or if they do they'd likely enter a pipe before it is mentioned. I'd recommend simply just reading chat during channel transitions/endings only to try and avoid this, but it's up to you how much you trust chat.