haha it's funny how that works, supply and demand
semi tangent, YT I was against it for a bit, but it's hard to beat their user engagement
against because of the ads being applied to videos even if you didn't want them there, but I also realized I don't pay for their service and their bandwidth/processing happily gulps down my GBs of files.
Think of twitter, although active users are very much important, once a tweet is there it's there and it's available for everyone so the website gets a little more valuable with every tweet that is posted. But a dating site? Someone that makes a profile adds nothing if they abandon it after a couple days!
So although I agree with you that getting users is indeed one of the biggest challenges; I think your experience was particularly bad :)