Nearly everyone in the U.S. has Internet access. Many online dating services are inexpensive or free. Many people are single and say that they would prefer to be partnered and/or married.
From the above facts I think it is reasonable to infer that online dating services are not very effective (see my 2011 posting on the subject).
I left a comment, however:
1. The term “revealed preferences” was invented for moments like this.
2. Most people would probably prefer to be partnered and/or married with a person of sufficiently high status, however the first party defines “status.” But many if not most of us have contradictory desires or preferences or dreams.
3. People who can make reasonable compromises do not appear to spend much time alone, especially because they tend to find other people who can make reasonable compromises. We live in a society that valorizes rejecting the existing order and heroically going it alone. In some circumstances that is probably good and probably works, but in many others it’s probably bad and doesn’t work real well.
From points 1 and 2 I infer that the online dating industry may be working reasonably well but that a) search costs are high, b) people don’t want to admit who they can “get” given what they bring to the table, c) a lot of people want novelty more than security regardless of what they say to others, and d) a lot of people are full of shit.