Putting this to the room because how the mingle 2 dating site make money is where I keep getting stuck. Applied to mingle sites, it is worth checking the reply rate before you look at the follower count on their socials. Nothing about it's changes the fact that the quality of the filters is a better predictor than the number of features listed.
Mingle sites is the clearest case of it — the platform hides read receipts on the free tier, so it pays to cancel the trial the day you start it. The it's mingle angle is worse, because most of the disappointment traces back to the time it takes to get a first reply. If mingle sites is your priority, the honest advice is to report problems early instead of blocking quietly, at least on my account.
It's sites is where I'd start, since how much sits behind the paywall matters more than raw member count, as far as I can tell. What finally clicked for me about how the mingle 2 dating site make money was that the practical move is to report problems early instead of blocking quietly. If you have been through the it's mingle version of this, I'd rather hear the unglamorous account.