Should we ban the Griffin Conservatory and the Hive of Serpents?

It's a pity that I don't see any understanding from almost anyone.

There is understanding, but the proposal is raw.
You say that you've been thinking about this for a long time, but I personally don't see any good proposals yet.
For example, I immediately thought that you could simply limit it, for example, to 1 conserve and one clue per week (the bonus accumulates).

Well, the problem itself is relevant. It's just that the solution you proposed is even worse.

This is exactly what many people are thinking... the question determines the answer!
You are guaranteed to fail in the voting because the question itself leads to the fact that even those who see the problem will answer 90% "do not prohibit."
If there were at least some variety in the voting and a couple of good proposals for solving the problem, there would be something to choose from!

Regarding clues, you could also suggest an option - to reduce the reward by half, i.e., the maximum will bring only 6 wyverns, and the minimum only 2, but then it becomes difficult with the conserves....