Or generally a non-corpo platform where you don't have to give private details you don't want, trust e2ee chat privacy and most importantly don't have to please an algorithm.
If some neurodiverse prefer to stick to others which are similar, a good filter-system would be cool.

Now drifting into fantasy: peek would be a P2P system, where every member has a set of own attributes and attributes (and logical combinations of them) they seek. I think with the right crypto-math it would be possible that everyone can broadcast their set of preferences, the receiver can check if they match without seeing what the preferred attributes are. This would enable maximum privacy and still yield high accuracy.