Welcome Turkey! I was glad to discover this thread this morning. I enjoy hearing success stories and imagine people here could learn quite a lot from you. I hope you stick around :)
The point Turkey raised about increasing income is critically important. If someone insists that you can solve a cash-flow problem exclusively by optimizing (reducing expenses), that someone is making a two big assumptions that may be wrong: first, that there is sufficient income in the first place, and second, that they are living somewhere that facilitates optimization*.
My income increased over the last three years (as a direct result of the sort of power dynamic thing SeattleCPA talked about in his linked post) and my savings rate shot up. There is no way I could achieve the same rate by optimization. If I ate the cheapest possible food, never ate out for anything, added a roommate to my 400sq-ft apartment, cancelled Netflix and Crave, I would not quite make half of the additional income... and it would be way, way more costly to me in aggravation and loss of simple, inexpensive enjoyments. Like having the toilet to myself.
I know that the people pointing out that time is better spent on a business than a side gig aren't going to get a lot of traction with people who don't really want more work. But their argument is valid, and in the conversations we could have, even people who don't want to run a business will probably pick up something that will help them with their side-gig. Or help them understand something about their business or their boss that could help them with their work.
*When you live in a relatively dense and highly resourced area, it's easy to forget that the bounty of quality cast-offs is not available everywhere. Try getting a great deal on higher-end sports equipment, kids clothes, newish tablets or other tech, or tools, furniture etc. in a small, beat-down town.