I can't speak for anyone else, but I don't mind at all when an open source project switches licenses or whatever. They gave away the fruit of their labor, but I am not entitled to any more of it.
What does bother me is when the projects pivot to claiming that users now have a moral obligation to financially support the project. There is a kind of dishonesty in this move.
It's not that a successful project "should be free", it's that its success depended on it being free. If they had said all along that they'd eventually ask users to pay, that would be honest... but then they wouldn't have seen much of that adoption in the first place.
What does bother me is when the projects pivot to claiming that users now have a moral obligation to financially support the project. There is a kind of dishonesty in this move.
It's not that a successful project "should be free", it's that its success depended on it being free. If they had said all along that they'd eventually ask users to pay, that would be honest... but then they wouldn't have seen much of that adoption in the first place.