Yeah, used to be that a lot of companies in the batches made more or less sense, or you could at least see how they'd made sense if they managed to successfully reach their vision, even if it many times was a bit wishy-washy.
YC since then seems to have moved into a "spray and pray" approach where the ideas don't matter at all, they're 150% in on the "We invest in founders" idea now, almost too much, although I know that's always been a thing they've thought about. But all the batches since some years ago are just so uninspired and seem to be quick cash grabs, or obviously acquisition targets, rather than "solve a problem you experience yourself" which seemed to be much more popular (and realistic) before.