bias wrecker
tempted
the one-line answer
A group member who threatens your loyalty to your current bias.
A bias wrecker is someone who keeps pulling your attention and affection away from your main bias. They are wrecking your bias by making you consider switching.
niche
Well known in specific communities.
01 / in the wild
hear it move.
fandom
I have a bias but this other member is bias-wrecking me.
I have a favorite but another member keeps pulling my attention.