To each their own, but I find this decision really misguided.
It's her money, not mine, so whatever, but l do not expect her to turn a profit in, rather the opposite.
In my view, the cross section of "IfR" users and people willing to subscribe monthly is rather small (especially if the money mostly goes to reddit - assuming I could afford it, I, for instance, would rather fund an open system like Lemmy).
And if Apollo's dev Christian Selig decided that it wasn't worth it with an already established paying user base, who already has a strong culture of subscriptions and exaggerated pricings, and one of the highest volume of users, at what probably was the peak usage of the platform; I don't see how a small app like IfR can survive.
That, or Christian made a pretty expensive mistake...
I personally wouldn't try to work with Reddit, if I were a developer, but another factor here is that walking away from a project might be a big risk for someone who doesn't have a backup plan. Christian Selig is a high-profile figure who can afford to walk away from a project. He will be able to rebuild his career quickly and easily, and he knows it. The developer of Infinity likely doesn't have as many opportunities, and may also not feel comfortable taking that risk. I don't know much about her, but if she's not making a whole lot as is, she may legitimately not be able to afford going without an income source for weeks or months. It may be less about making a profit by doing this than about avoiding a catastrophic loss. Selig has admitted he's going to be losing a six-figure amount of money ($250,000, iirc) from shutting down after selling year-long subscriptions. I suspect everyone who has or had a Reddit app looking for alternative income sources, but I don't blame her for trying to make Infinity work for a little while longer.
I guess if the app is done and basically works then you might as well add a payment system and at least try to cut your losses. I'd struggle to enthusiastically improve the app after that though.
That comment about "it might not work" really sums up reddit's attitude
I think "struggle to enthusiastically improve the app" is probably an understatement, lol. I doubt this is meant to be a long-term business strategy. It's not like there were any good options here, just her choice of a few bad ones. I wish her luck.