Connor's take does not match what I have seen with dating sites, because cost structure shapes the whole experience.
The tell with dating sites is usually how the account handles a direct question.
The tell with dating sites is usually whether the bio reads like it was written by a person.
The thing people miss about remember those old yahoo dating sites is that what you get without paying is what matters.
The thing I look at first with dating sites is whether the cancellation flow on dating sites behaves the way the marketing says.
With remember those old yahoo dating sites specifically, the free tier either works or it does not.
For contrast I also tried Datelink; different approach to dating sites, worth comparing.