Stay alive!!!

You can check the Clans rating – this can be a criterion for "real activity".

A worthy criterion, reflecting if not everything, then a lot. But again, one could argue that the Clan has just appeared, and we shouldn't stifle the young generation. But the objective reasons that formed this rating will not disappear in one day. Therefore, we introduce stricter requirements for creating a Clan (new ones won't appear for some time) and give all existing Clans a chance to prove themselves. Very quickly, it will become clear who really lacked time, and who lacked something else. Before the end of the year, Tournaments will be held for parts 1, 3, 4, 5, and maybe even 2, and for Warlords. Participation in these Tournaments can be made voluntary-mandatory for Clans. This is quite enough to create a picture even from scratch. The strong will show themselves, and the weak will fade into oblivion.

There will always be "squabbles and rumors, a sea of chatter".

Yes, there will be, but the amount can be significantly reduced.