Stay alive!!!

But why create a new Clan if it will just be dead weight? And as you yourself said, it will be deleted.

Who would be bothered by such a Clan? They create a Clan, it exists "actively" for some time, then becomes "inactive," so what? Who does it bother? You? You're already in a Clan. New players? Well, then it only bothers those who are too lazy to browse, let's say, 10 Clan topics and choose something for themselves.

Completely dead Clans (i.e., those whose members haven't appeared on the forum for a certain time) should be deleted, but they aren't parasites...
Regarding the message limit, that's great, but not everyone likes to write a lot and often, and those who want to create a new Clan (for bragging, for example) will easily overcome this "barrier by writing all sorts of things in different topics. If they want to, they can manage it in 2-3 days.
But a limit on the time spent is more reasonable, because it's unlikely that a user will register and wait a month, for example. It's very unlikely that they will register and log in after that time limit; it's all just talk.

In general, this is just my humble opinion; these kinds of restrictions and "cleansing" of old Clans aren't necessary. It's all a bit silly. Do they prevent people from playing Heroes? Do they prevent them from discussing tactics, Factions, castles, etc.? What other goals does the portal have? In my opinion, the portal is dedicated to the game series, so let's discuss the game, not argue over trivial things. :)
Sincerely, ZYbr