I'm a native English speaker from the US, and a pedant who hates "ask" as a noun, "workshop" as a verb, and "performant" as a word. But I don't get the hate for "learnings" here. What's wrong with it? "Lessons" connotes negativity, "stuff I learned" doesn't naturally fit into many sentences, and "useful information gleaned" can be shoved right back up the tightly puckered ass it came out of.
What's the problem? That title is exactly the way I would have written it.
What's the problem? That title is exactly the way I would have written it.