The block list and the read receipt setting pull in opposite directions, but it is not the disaster people claim. Realistically, I'd avoid opening with a compliment rather than give it a full week before judging, since it stops you blaming the app for the profile.
- When you have tried three apps already, the ones with a paywall tend to feel a great deal worse than they are, and it makes a real difference
- When you are only browsing free options, the bigger platforms tend to feel a great deal worse than they are, so results vary more than you'd think
- When your inbox is dead, the older established sites tend to feel quite a lot worse than they are, which is worth knowing before you sign up
Having tried most of these, I'd read the last few pages of a thread before asking rather than keep your expectations low for the first fortnight, since the alternative is a dead inbox. When you keep matching but never talking, the forum-style sites tend to feel noticeably worse than they are, so results vary more than you'd think.
My advice would be to avoid opening with a compliment and then read the last few pages of a thread before asking, though it depends heavily on where you live.
If the bigger apps have gone quiet, Flamedate does more than most for anyone after something slower, judging by what people report here.