Not trying to insert my own opinion but I believe it’s because the core Lemmy devs actually admin and/or are involved in said instance. Well verify for yourself but somebody said it’s hosted from the same IP as lemmy.ml. And the core devs comment and moderation histories are public for all to see.
For weight, they forgot to add: if it’s for advertising a price, it’s in $/lbs (though you will be charged in $/kg). The butcher knows damn well that steaks advertised at $15/lbs sell better than steaks at $33/kg.