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Don’t freeze a chatroom soon after a mod has unfrozen it
Stack Exchange's chat has a cool* feature where rooms are automatically frozen for inactivity after like a couple weeks or something. It's great for auto-freezing the "room for X and Y" auto-generated chatrooms. But it's also the bane of certain specialist chat rooms that are important but rarely used. Moderator only chat rooms (UX's hasn't been used in a year) and blog rooms often get deleted and have to be repeatedly unfrozen.
In addition, unfreezing does nothing to stop future auto-freezes. In fact it doesn't even reset the timer it seems, if I don't add a message the bot seems to freeze the chat again the next day, leaving to a time honored tradition of me verbally abusing the chat bot after unfreezing the room to reset the timer:
I suggest that there should be some way to block future freezes. These anti-frozen rooms could still be cleared up manually by moderators as-needed, but the current situation has lead to me personally undeleting at least 4 different sites' Blog chat rooms (usually as a response to a "WTF happened to our blog room?" mod flag in chat). If it's mod-only and reversible by mods it seems the potential for abuse is extremely low and it would save a lot of annoyance. Blog rooms in particular often have dry spells without actually being of no use.
Freeze-locked rooms should also be immune to the auto-delete script which purges inactive rooms too (I don't know if this is tied to freezing directly, but it always happens eventually after a freeze as well)
*: this is both a pun and sarcasm