Here is where I've got to on free dating sites no sign up required just to browse local profiles, and where I'm stuck. My main worry with local profiles is paywalls, honestly.
For people I've compared notes with, hidden costs shapes the whole experience on that side of it rather than being a side annoyance. You can usually tell within a week whether that side of it's going to work for actually getting a reply. My goal is conversation that goes anywhere, so anything that gets in the way of that's a problem. If long-time members have a different experience, I want to hear it.
If someone has found a better route through free dating sites no sign up required just to browse local profiles, say so.