Business idea: make an app to browse Youtube channels with efficient filtering and sorting, like "most popular video in the last 3 months", I believe it's impossible on Youtube right now.
and I don't get why the NewPipe devs are against upstreaming it... kudos to polymorphicshade, updates in NewPipe get handed over pretty fast.
Personally I would've just been fine with them saying that it's feature creep and maintenance burden they don't want, I'm sure newpipe is already more than enough work to keep up with in it's current state, but there you go.