I understand this may be a meme, but did you actually take this as a serious red flag, and is this why you stopped working with them, or were there other factors?
It showed they couldn't communicate well, couldn't work in stealth mode, couldn't focus on building/proving out the mvp.
Other factors are just hindsight/observing them the decade after. Two of those factors might be. 1. Repeatedly quitting contracts (if it's not a good fit fine, if it's never a good fit maybe you're missing skills to complete a project).
2. Comments/behaviors that illustrated they would have been a poor manager if we scaled/inability to be wrong.
For me, other developers and contributors have been one of the most important factors for success/completing projects/keeping clients (in the contracting space). So I consider this an important lesson I was fortunate to learn early. I don't know who I would be working with now if I had failed to keep great talent around me (or for that matter, what skills I would not have developed).