Easy dating app: instead of making profiles and 'matching', just organize a bunch of dances, hikes, etc in a community and charge a nominal fee for membership. This will likely lead to much better matches than some silly algorithm.
The downside is there's a lot of overlap between "people who are online dating" and "people who aren't good in group social settings".
Source (among many): https://www.complaintsboard.com/events-and-adventures-possib...
some examples: if you end up "not single" you cannot cancel your membership and are obligated to keep paying through the agreed term, BUT are not allowed to participate in any events as they are "for singles only".
The apps are particularly bad at this. Bumble in particular heavily promotes the profiles of people who are traveling. So when I go on vacation I get the dopamine hit of 10x more matches than usual, but with a decreased chance of actually forming a lasting connection. On the flip side when I'm not traveling probably 15% of the profiles I see are people at the nearest airport or flight attendants who live in other cities.