Once it's made, a chat room starts out with 2HP, and it loses 1 every 15 minutes. If people talk, it stays at the same HP, and if people talk a lot it gains 1 HP (to a maximum of 4).
How will you handle bots that just keep channels open yapping about nothing?
seems like a feature
This is a bit more in-depth, but talking isn't enough :) There has to be an entropy difference between messages (e.g. delta of the Levenshtein Distance has to be > than some constant) and users posting (same user posting over and over doesn't count) or the channel will still lose HP.