Not on skycade. The cannon jar is near non existant. Normal regens are already barely bustable, minechats are near impossible. The server had 1-2 raid attempts a season when minechats were enabled. This map alone, without minechat regens, there have been more attempts this season than there have been in every other season combined. Some of which, were successful. Minechat regens break skycade as a server.
you do realise that full sourced minechats are not allowed right, only 1 of the top blocks of lava on the 2 block wide part of a minechat is allowed to be source, the whole rest of the 2 wide gap is not allowed to be source so its not that hard really.
I happen to agree that they shouldn't be allowed. Without the proper testing on the cannon-testing server I don't think they should be allowed until there is a cannon that will actually work to bust them as most of the time when you regen bust it's just the server breaking it not the cannon.