Vote is a mess this year.
Koishi somehow won with more than half her votes being on #1. The big number of #1 votes she's ahead by is far more suspicious than Youmu's 2021 win.
JNafuda on twitter decided to make fairy OC and used her to campaign #VoteFairy, which got them to 101st place. They got blocked by Letty, but overtook proper touhous like Mayumi and Kyouko on the way there. Some even voted only for Fairies as best touhou. He can't even say their names correctly, so the new voters must be quartaries. The vote will have nothing to do with actual preferences if someone does this with a proper Touhou and not their OC.
Despite the change in couting to give the first place a triple vote and second place a double vote, the placement for the Aki and Prismriver sister didn't really change, retaining their vote splitting effect. Despite the survey response of 42% of voters discovering Touhou and the age being rather low, the new people and new calculation didn't cause that many wild swings.