Dark definitely is ambitious and you're entitled to be skeptical. Personally, I'm really glad this isn't just a fancy IDE on top of a conventional stack. I think we should be doing everything we can to support loonshots and crazy new ideas like this because these are the kinds of things that could change the game for all of us.
Happy CircleCI customer.
I remember communicating with Ellen (the co-founder that has left the company) back in April (2 months before they let everyone go) when they asked for feedback. I said pretty much the gist of this blog post and received a one line answer of 'well, that's like, your opinion, maaan'.
I should feel vindicated, instead I feel sad. Dark got 3.5 million in funding - I'd be very curious to know where that money went (specifically how much the founder and co-founder have paid themselves) because it sure sounds like the founders got to 'try ocaml lol' with 3.5 million of someone else's money and then write blog posts about it that routinely show up on HackerNews, telling the rest of us of their 'lessons learned'.
Without knowing anything regarding the specific details, I would be pretty surprised if investors wouldn't be ready for both ups and downs.