I became single in 2013 and cupid was definitely where the cool kids were. But it was a desktop thing. You sat at a computer and engaged. You invested. Tinder and swiping are a phone thing. No real investment.

Funny thing, 12 years later I met my wife on the zombified corpse of cupid. So... go figure.

Because people were less cynical in the 2010s and there's no way to bring that back.

Nothing, just The Match Group buying everything as soon as it becomes popular and incentivizing keeping people using the apps over successful long-term matches.