Ao3 Kudo Weirdness

This morning, I got a notice of, like, 20-ish kudos on a single story of mine, not new, not a big fandom (Trigun), not especially good--it's basically a whimsical mega-drabble. This is totally unprecedented in my Ao3 experience, and it makes me wonder if it's a bot or something? I'm not complaining; it's just bemusing. :-) (Also, the story does not engage with race, so I don't think it's a political thing springing from the racism troubles.)