(and just to be clear, at this point I think that Flock has turned into an anti-Constitutional threat to US Citizens and should be wholesale banned and put out of business).
YC's current CEO is Garry Tan, who has a lot of ties to "effective accelerationism" and the "dark enlightenment" movement (The Curtis Yarvin/network state/cuckoo for cocoa puffs far-right tech broligarch movement that wants to end all democratic oversight of tech companies).
So, yeah, not only is Flock a YC company, but YC's current CEO produces a lot of propaganda for them. For example, this:
https://garryslist.org/posts/flock-found-more-stolen-cars-th...
...which is perhaps the most obviously Claude-generated AI slop content I have seen (and since the internet is becoming a firehose of this shit, I've seen quite a lot). Like somehow every fucking sentence in it is peak claude-slop.