With the people behind the game clearly intending to phase out Vault weekends, here’s a suggestion to please those players, who definitely hate themselves:
After doing 1000-1500 fights within one day, a gnome mode is activated, that works in the same way as the current Vault weekends, so strongly increased spawn rate and rewards for every couple defeated ones. The effect lasts until the daily reset.
Whoever is mentally broken enough to reach this point, does deserve it, the devs can pat themselves on the back for “increasing player engagement and making the product more fun and addictive” and we can finally move on from this whole mess.