You guys need to understand that people have been saying things like "a lot of them look like duds" and "almost all the others are just X for Y" literally, and continuously, since YC got started.

I do not think they are duds, quite the opposite, they look like profitable ideas. Just incredibly boring to work on. In the first two pages of workatastartup it is 90% web. There were two data science roles and one embedded role. I think the domain of profitable ideas is a lot larger than what Typescript/React can represent.

I believe you, but that’s how many of these startups are described even at ycombinator.com/companies when I filtered by W20

Famously dropbox was ridiculed on HN

Yes, although I do think the user who posted that comment has gotten a bit of a bum rap over the years - https://news.ycombinator.com/item?id=23229196