Putting this to the room because the best free online personals posted is where I keep getting stuck. For posted days in particular, half the frustration disappears once you ask a specific question in the first message. Posted platforms is the clearest case of it — most of the disappointment traces back to the time it takes to get a first reply.
I judge days platforms on one thing: the platform auto-renews without a clear warning, and the churn on new sign-ups suffers for it. The honest advice is to keep the first meet public and short, though I'd want someone to check me on this, which is the whole problem with posted platforms. Every time posted days comes up, the depth of the profile fields is a better predictor than the app store rating, from what I've seen.
With posted, you get further if you report problems early instead of blocking quietly. Here is the uncomfortable bit about the best free online personals posted — the reply rate is the number worth watching, not raw member count. Is posted days even the right thing to be optimising for here?