Ok... I did a *little* research and I'm kinda reassured it's not a kudos bot because apparently those do exist but they spam 100s to 1000s of kudos on fics without the hit counter going up in a way that makes sense. Gonna say 98% sure - teaser trailer and the fact it's a fix-it fic for a doomship.
Cath M 🏴💍All my kudos this morning was guests again lol.