I used to write about my upcoming projects before delivering: "I'm doing X and Y and releasing on date Z, watch me!"
I've given up on this habit. I thought that documenting my journey in real-time was important to keep my audience updated and excited, but it's only diverting me from solving the urgent problems I have at hand to deliver. I was naïve. There is no clear call-to-action for my readers anyway.
As long as you don't have anything to show for your efforts, keep it to yourself and your close circle. You should always find ways to bounce off ideas without telling everything you have in mind.
I know I sound like a machiavellian, but I'm pretty sure we can agree on how unwise crying wolf is. This is no different.
I still believe it's primordial to journal your progress in public, and yet, I now understand it's even better to let the resulting work do the talking. You can share about your inside quest afterward. Do, then document.
We still need to remain transparent about our objectives to grow trust. The balance isn't as hard as it seems to strike: fewer ramblings, grandiose announcements, and useless debates on the current state of the world, and more concrete facts supported by one's own experience.
Once again, we have to think like scientists. We formulate assumptions every day. There is no need to talk about them before having performed researches and experiments, and the conclusions are what really matter.