Maybe reddit does that thing that Apple does where they have multiple siloed teams work on the same or similar things and just use the one that comes up with the best solution. So they have 80 independent devs each working on their own app and the current app is the least shitty out of all of them. Either that or they have like 50 shitty apps, 20 decent apps, 9 brilliant apps, and the one that they went with which was done by spez's nephew who took a coding bootcamp one summer and is really good at mobile dev.