Not a whole lot of people who cut BTA to begin with. Cutting them in 4 is pretty crazy and isn't something I have done or would do. The heal time on them has to be way higher than cutting them in half. I'm pretty sure you're not allowed to cut them up and sell them like that on RC, but I could be wrong.
@DC. Provided the anemone splits naturally like a BTA, I don't think it is cruel. Sure, it is a bit harsh, but so is cutting mushrooms. It's the same thing. I see where you are coming from though. Cutting a hadonni is cruel, because both halves usually end up dieing.