It’s mentioned here: join-lemmy.org/docs/…/03-votes-and-ranking.html so I thought I just didn’t notice it before.
My home instance is currently on Lemmy 0.19.0-rc.5, so there’s some new features, and I thought this one was here already since it’s mentioned on join-lemmy.org.
Anyway, there’s also “controversial” in this new version. Currently the most controversial post on Lemmy is this: lemmy.world/post/3234363
Sorry if I caused confusion to someone else than myself.