Normally (rant mode on) it is my opinion that most drive-by down-votes are by lazy cowards who think someone's opinion is wrong, but is unwilling to debate (probably because their counter-argument is rather weak, honestly). Too much of this and you get the atypical "mob mentality" typical on most social media networks -- most of which have become intellectual wastelands, replaced by feel-good quick-dopamine-hit memes all focusing on whatever "side" the social media collective has embraced. (Counter-narratives and counter-opinions, beware.)
But this doesn't quite fit the usual pattern. In this case, I must have misinterpreted something, perhaps. But someone is not willing to say what is incorrect.
Interesting! Because, the alternate view is that I'm absolutely right, and the downvoter just had a weird beef with Spotify or restaurant.org. Hard to tell. It's a social media downvote after all.