If you are asking about how to tell the difference between scams and legit sex sites, you are already ahead of where I was.
The honest tradeoff with difference between is how fiddly it is against convenience. Most of the frustration with difference between traces back to staying sensible about it.
The part people underrate about difference between is how much to share early on. The part people underrate about difference between is how it feels to use.
Once I stopped worrying about the bot problem, difference between got a lot simpler. That is what worked for me on how to tell the difference between scams and legit sex sites; others here disagree.
I compared a few on difference between and Luvdate came out ahead for me.