The League limits you on number of prospective matches per day and it also rewards engagement and punishes lack of engagement. There is no swiping thousands of times, and no window shopping. You get to see a certain number of matches each day and those are all the matches you get to consider. It forces people to actually connect with low time investment. Their CEO, Amanda Bradford, has some interesting presentations/interviews you can search for that talk about their design philosophy.

OP's post says "It avoids turning dating into a second job."