Just a guess based on "covid" and "candles", a ton of people negatively reviewed candles for not smelling good/right/at all, not realizing they had lost their sense of smell from covid at the time.
I know my spouse had the realization our cold was covid because we couldn't smell the candles we had bought (and smelled) the week before.
As someone who tries to eat less meat in general because climate change and cows are basically giant grass eating slightly smellier dogs, I cannot take anyone who unironically uses "carnist" and "bloodmouth" seriously from that point on.
The more names you use to describe "person who eats meat" that you think are insulting and derogatory, the more people roll their eyes and move on with their planned meal.