A more detailed description:
Provided a card stack system, the dynamic balance of liking vs. skipping tends to stabilize into a state where men like everyone reasonably cute (“to get more chances”). This is also caused by their inability search for a conversation partner in a rational manner, because it’s a card stack system. Often enough, all the information you have is a photo, age and city.
This causes women to experience a saturation of likes: everyone likes them. This causes them to be extremely picky about who they like back.
The result: unbalance. Dating sites view women as a “resource” to attract men, and men as customers to be scammed out of money to actually show their profile to someone, once in a while.
It no longer respects geographical preferences. Here in Estonia, if you go on OkCupid from Tallinn, you see about 30 Finnish people from Helsinki (across the sea, 80 km away) before you encounter a local (you also get 30 likes from Central Africa and South-East Asia).
It also has the card stack system now.
The question system remains and remains helpful, just the rest is broken.