Another thing I don't understand is that the dating websites don't offer users any coaching.
1) Perverse incentives. Make your customers happy: lose them. Keep your customers hoping but unsatisfied: keep them.
2) There already exists a separate "dating coaching" industry, called PUA. Problem is, because of human hypocrisy, you cannot provide effective dating advice to men without insulting many women. And if a dating website loses most female customers, it obviously cannot work (well, unless it is a dating website for gays).
However, neither of these explains why dating services don't offer false coaching, one that wouldn't really help customers, but would make them happy, and would extract their money.
Maybe it's about status. Using a dating website can be a status hit, but it can be also rationalized: "I am not bad at attracting sexual partners in real life. I just want to use my time effectively, and I am also a modern person using the modern technology." It would be more difficult to rationalize a dating coaching this way.
1) Perverse incentives. Make your customers happy: lose them. Keep your customers hoping but unsatisfied: keep them.
On the other hand, there's a win for the dating site if there are people who met there are in good relationships and talk about how they met.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.