Are structure, seriousness, watertightness and such are trumped by fun and clarity? Is it safe to run with this? This could save a lot of work.

I DUNT KNOW LETS TRY

It's not necessarily that a highly upvoted post is deemed better on average, each individual still only casts one vote. The trichotomy of "downvote / no vote / upvote" doesn't provide nuanced feedback, and while you'd think it all equals out with a large number of votes, that's not so because of a) modifying visibility by means secondary to the content of the post, b) capturing readers' interest early to get them to vote in the first place and c) various distributions of opinions about your post all projecting onto potentially the same voting score (e.g. strong likes + strong dislikes equalling the score of general indifference), all three of which can occur independently of the post's real content.

The visibility was increased with the promotion of your post. While you did need initial upvotes to support that promotion, once achieved there's no stopping the chain reaction: People want to check out that highly rated top post, they expect to see good content and often automatically steelman / gloss over your weaker points. Then there's a kind of implied peer pressure similar to Ash's conformity experiments; you see a highly upvoted post, then monkey see monkey do kicks in, at least skewing your heuristics.

Lastly people you keep invested until the end of your post are more likely to upvote than downvote, and your pixel art does a good job of capturing attention, the opening scene of a movie is crucial. The lower the entry barrier into a post, the more people will tag along. A lesson well internalized by television. Compare the vote counts of some AIXI related posts and yours.

You are also called nyan_sandwich, have a good reputation on this site (AFAICT), yet provide us with some guilty pleasures (of an easy-to-parse comfort-food-for-thought post, talk about nomen est omen, nom nom). In short, you covered all your populist bases. They are all belong to you.