For some, it’s just the incessant anarchist tendency to rename everything, and they do think work is necessary. For others, it’s just that they don’t like having a boss. Obvi we all hate bosses under capitalism, since their role is to drive us as hard as possible to extract more surplus value, but under a planned economy suited for human need, it’s more that you’re working toward that goal instead.

There’s an essay by some anarchist weirdo named Bob black that most anti work anarchists point to.