Keeping quite to achieve goals

According to this article on Lifehacker, you should keep quiet about your plans to ensure you complete them. It's an interesting theory about symbolic self-completion, basically by getting the praise for trying something you don't feel the need to actually do something. I don't have a large body of contradictory evidence, but I've told this blog and others that I was working on my mash tun false bottom, even shown it to some people and still worked on it this weekend.  I've talked about my skull carving and CNC projects, and am still working (very slowly) on those. I don't know that it's a pure 1 to 1 comparison given that all of those projects where underway before I started talking about them, but I feel like I have several personal examples that contradict these findings.

I've also followed several project build logs of others that documented their process from concept to completion with feedback, adjustments and still went onto completion. It may be that there is a specific type of person that feels like symbolic self-completion is enough feedback for them to not finish a project. One might even go so far as to call those people posers, people that want to be something, but might not have the will to actually be those people.  My lack of progress is time bankruptcy at home more so then praise being enough to sate my need to build something.

What do you think? Is there weight to this or is it more nuanced then they make it?