I did not know whether main chatroom can be frozen for inactivity, too. Now I know:

That's too bad, @Martin Sleziak. Have you flagged a moderator to unfreeze it?

@RicardoAndrade Now, I did not. But I suppose that eventually some of the mods will notice that. (At least François G. Dorais frequents chat, maybe some other mods peek here occasionally, too.)

Anyway, as the room was not used for 14 days, it is not needed too badly. So it is not an urgent matter.

Likely it is true it is not urgent, but I will still ping @FrançoisG.Dorais about the frozen main chat room.