I have two counter-examples to this from my own experience. The first is when I was asked to do interviews for my replacement after I handed my notice in at on

I have two counter-examples to this from my own experience. The first is when I was asked to do interviews for my replacement after I handed my notice in at one company. Everyone knew that I was leaving because I hated it, I didn't even have another job lined up. But I was the person on my team _least_ likely to give a bad impression of the company. The second is when I was interviewing for a startup tech lead role. One of the engineers gave me a tech test, then we had a chat, and I asked, "What's the worst thing about the company?" She told me: "Basically the CEO has no idea how software development works, or agile development, and we have loads of arguments and it's really frustrating. We're trying to hire a tech lead to shield us from that." Needless to say, I didn't take the job...