This is kind of a bummer. As a first time founder, it's not really helpful to read a list of things that you may be doing wrong (especially when there is no mention of a correct path to take - you're simply led to believe that you should do the opposite).
Another point of contention was:
We have been working on our Startup for 3 years now and there were more reasons that it should have collapsed than I can think of.
Is it possible that actually making these mistakes is how you get better? I'm all for primers and advice, but something is missing here.
First of all sorry if the list is not helpful. Kinda hoped for people like you to find santiy-checks for their current process in there.
Regarding your point about making mistakes: I assume the truth is inbetween.
As said it's harder for me to give advice "what works" because stuff that works is usually more specific.
But i will try in future to rather focus on actionable stuff that works instead of warning signs
As far as "sanity-checks," I feel like you've accomplished this. When I see lists like these, though, I hope there's something I can chew on; a couple of sentences that further articulate the point being made (this may be a personal thing, but it helps me to really "get" the point). There's nothing wrong with warning signs, but warning signs aren't necessarily what you're doing wrong (rather, just a hint that you might be).
Another point of contention was:
We have been working on our Startup for 3 years now and there were more reasons that it should have collapsed than I can think of.
Is it possible that actually making these mistakes is how you get better? I'm all for primers and advice, but something is missing here.