The free tier changed meaningfully in the time I've been posting here, and it shows in the reply rate. Worth saying that the decision to give it a full week before judging did a great deal more for me than switching platform, and nobody warns you about it.
When you have limited time in the evenings, the forum-style sites tend to feel considerably worse than they are, which most people notice within a week. From what I've seen, I'd test two platforms at once rather than give it a full week before judging, since that is where most people give up too early.
Having tried most of these, the search filter setup is the thing that decides it, even if the bigger platforms rarely say so. When you are after something serious, apps with a video option tend to feel marginally worse than they are, and it shows in the reply rate.