If you come with reddit mentality, you're gonna see reddit eveywhere. In Lemmy, upvotes are not a popularity contest. There is no karma. Votes have no use other than sorting.

One of the reasons my comment may have more upvotes might be because it directly answers the question of the commenter above.

OP didn't ask what the borrow checker was, OP asked if it was an integral part of rust, and I answered it. Just like another commenter asked more specific questions about rusts' borrow checker and I answered them.

Another reason might just be that my comment has more entertainment value, while the other one is purely educational.

Another reason might be that Lemmy is already full of rust explanations, therefore there are probably not a lot of people left to learn how it works.