In my brief online dating experience, I joined many other hopeful suitors who trust these services with their personally identifiable information, credit card numbers, photos, and even details about their interests and lives.
With one of the most modern and fast websites you can really experience something different. No waiting, no upgrades, no payments, no credit cards.
When in doubt, always assume anything that says free but requires a credit card is a scam.
Nonetheless, there are some semi-legitimate scenarios where giving your credit card information is the right thing to do.
Sometimes, you may receive an offer for a free trial period.
I’d expect this to be the most common scenario that matches what you’re talking about.
Christian Singles and e Harmony scored high in part because they’re TRUSTe certified and have up-to-date privacy policies.