I don't see how this is a debate. People unsubscreibed Kagi, they never subscribed again, billing them is illegal, period. (And even if it were legal, why would anyone want to that in the first place? If I operated a business I most certainly wouldn't want to bill people that are not my users.)
"wHaT iF tHeY wAnTeD tO sTaRt pAyInG?" was just a joke on twisted cartoon scammer logic, not an argument.
Anyone that wants to use Kagi again can click on the subscribe button.