They were not able to save Thulsoma from the Astroists.
Really?
Seriously?
You're going to use that as evidence that the clanners aren't effective enough to be a worry?
GoldPanda, Thulsoma was a ridiculously poor three-region realm that took
the entire might of Sanguis Astroism months to kill.
Then Averoth, a
slightly less ridiculously poor realm, did the same thing, with more or less the same people.
If they hadn't been up against the single strongest powerbloc on Dwilight, Haruka Vanimedle' would still be annoying the rest of the rulers of Dwilight with long RPs peppered with Old Norse characters. (Letters, that is, not people.)
If they hadn't been in such piddly pathetic little realms, they might have conquered half of Dwilight's Northeast by now.
The kind of power that that sort of group can wield is devastatingly unbalancing to the game, even if you ignore their willingness to abuse family gold for all it's worth.