Wishful Thinking on the Part of the Donk

I see so many threads on here and other poker member sites talking about cashing out, and often there are questions asking advice about what to play to build a better bankroll. Everybody has opinions about these topics. That's great, but I think most players want to win. Doesn't cashing out just sound like wishful thinking by donks that never make a final tourney table? Are there really fish so blind they can't understand it's no need to worry about cashing out if you've never won a dime?