I publish into an open sea and hear nothing in reply. The constant reassurance from every platform that i use that i am merely "one more post" away from all my wildest dreams has to be true eventually, right?
It is not straightforward, however. One guy did only product-led marketing and it took him 3 years for his SaaS to make good numbers. And he's probably an outlier, since he's featured on the show.
And then you have another guy, who blogged for 5 years about Ruby and only after those 5 years using the audience from that, he built an OSS project with monetisation on top of that. But he could do that because he talked to his audience about ideas.
Listening to those interviews, I get the impression that if you know what you're doing, you can make a profitable SaaS in 2 or 3 years. But to get to a state, where you know what you're doing, you need at least another 3 years or more of actually putting in the reps in an honest way.
And I think that's where the "increase your luck" comes in. I think it's kind of shallow non-sense in the vein of motivational speaking but lots of people like this kind of content and like to be aspirational. Lots of the books sold by internet hustlers, like Rob Walling or Aaron Francis, don't get read, only bought.
Whether that's open source code, writing, various consulting, speaking at conferences, etc. will vary with the person. And the more you can do on a company's dime the better.
The exceptions to this are closed (or semi-closed) communities and forums where you directly interact with humans, either by inertia due to a large established human user base or (for newer, smaller communities) via personal vetting of participants.
Not looking for you to answer these questions for me here, but ask yourself, what are those dreams specifically? What are the concrete steps you've taken to get there, and how are you going to accomplish them? How long is it going to take you? What are success criteria? What are the risks? What are the failure modes?