That is still the case on some big apps like OKCupid. There are green-card hunters from poor countries that fill up the swipe queue and all have the same giveaway line:
"I'm not based in [your city], I just change the location to talk to new people". It's frequent enough that I stopped using the app altogether. OKC was already going downhill well before this.
It takes a few seconds and they are really upfront about it. I can imagine OkCupid charging for such a filtering feature, but I've never paid for it just didn't seem "worth it". Especially since Match.com owns it, and I'm not really helping the underdog.
( I understand that I might not have been making a sensible economical decision, as I have many examples of not doing that in the past )
"I'm not based in [your city], I just change the location to talk to new people". It's frequent enough that I stopped using the app altogether. OKC was already going downhill well before this.