I used to support VNorth,he made Second Happiness .
He came with an update every month.
But when he for some reason didnt release an update he froze the patreon and one time even refund.
That is the way it should work.
You are comparing apples to oranges.
VNorth locked his VN behind their Patreon account. You couldn't get the VN unless you were a subscriber (or got a pirated copy). Therefore, he probably felt "people are paying for the release of the product, I ain't releasing so I probably shouldn't charge them."
DC doesn't lock his VN behind his Patreon account. People can get the VN for free directly from his website. People who subscribe get access to services and other content - which they continue to get on a regular basis that can't be gotten (except through pirated copies) or can't be accessed at all without that subscription.