Your profile currently lists 25 questions, of which 20 are still open and 23 have score $\geq 0$. As such, it feels like you're over-reacting - you obviously have a pretty decent idea of what makes for an on-topic question here.
For the questions that did get closed, other than the duplicate:
- this one, also downvoted, is the kind of open-ended opinion-based discussion thread which isn't actually much of a question. It also goes on to very confidently make statements which are dead wrong, and leaves no room for ambiguity in that you're not contemplating any room around that; this isn't what got it closed, but it's certainly not a recipe for upvotes.
- this one just doesn't present a clear picture of what you're looking for in an answer $-$ and, to the extent that it does, it's way too broad for our format.
The ones that seem to have you worried right now are this one and this one, as well as this now-deleted one (screenshot), which were closed as homework-like. (Speaking of which: you just started a discussion thread and then deleted the example question that you'd brought up for discussion within five hours of posting on meta. Does that strike you as constructive? It certainly doesn't look like you're bringing up this discussion in good faith to me.)
The key thing to keep in mind here is that the homework policy holds regardless of the origin of the question. If it comes up that one of your questions might be in conflict with the homework policy, then you need to step away from the question, and what you know of how you yourself think about it, and then look at it from an external perspective. Does the question text read like it came out of a textbook? If so, have you done what we expect good homework questions to do? Are you asking for a concept, or are you just looking for a solution to the textbook-like text? Have you explained what you already know and understand, and how it came up short to what you wanted to do? (For your closed questions, all these criteria came up on the wrong side.)
The homework-and-exercises policy is applied consistently across the board (or as consistently as we can, anyways), and without any regard to where the question text came from, because that's the only way to keep it fair. If all it takes to ask a terrible question is to say "oh, no, this isn't homework", then it just scuppers the whole thing.
As for the elf-vision question that you seem to be so upset by: as mentioned in the comments, this question was listed in the Hot Network Questions sidebar for a substantial period. As such, it was advertised to a large cross-section of users across the entire Stack Exchange network, and its voting patterns can only be understood within that frame. (Though not entirely - from its timeline, it probably left the HNQ at score ~60, and then went on to more than double that score over the ensuing ~5 years. But then again, there are other self-reinforcing feedback loops besides HNQ.) Long story short, it's completely meaningless to compare post scores on HNQ threads vs threads that didn't get advertised on that sidebar.
And if that makes it sound like we have a sidebar that's advertising junk-food clickbait that doesn't really represent what makes for a Good Question on this site, then... yes, absolutely. Many people have been saying that for years, both here and over on Meta Stack Exchange, to little avail. There's some hope of fixing the mechanism, which opened at this ugly fracas last October, but we've yet to see how that shakes out.
Oh, and also: do not remove the homework-and-exercises tag from your posts, particularly when it's been applied by a moderator. The only thing that you'll achieve by getting into an edit war is to get your post locked, which is precisely the opposite of what you'd need if you actually wanted to fix your post.