Hmmm...I don't really think so to be honest. I mean, what is, let's say a gold or whatever mebership deal on Tumble or whatever dating app there is right now that isn't Tinder lol (Tried it briefly a while back). 20-30-40 a month? A lot of singles nowadays will be the younger crowds (30 and lower) or the older crowds (mid 50's and up). Many of whom, as we can see from members on this site, are desperate and loney. The younger crowds might not gave the financial means or priorities to pay for, let's say 200-500 max a year dollars for membership, so most have the free option. Which of course doesn't really work well, because the entire concept of the thing is to MAKE you get their membership. Which oft leads to nore distress, I think. The older crowds have the money, but also, usually, less patience and more pickyness...so it's a different angle on the same result, I think.
I see it kind of as sollicitation to vulnerable people, tbh. Of course, let's not even go to how people use it lol. Most use it in a very bad way for a variety of reasons.
I'm not saying it's always a bad idea or that it doesn't work. I'm saying if you take the positive on one side, put it on a scale against the negatives on the other, it weighs more heavily on the negative side of things.