Thanks for the suggestion, however they were being used by very naughty players to do very naughty things. There really hasn't been a compelling reason to undo the ban compared the harm they have caused, and we'd need a little more of a suggestion than to do it just because they aren't available. I believe they still drop, you just can't use them.
I got a creeper heart drop the other day + they're still usable for witchery, you just can't shift-click with them. Regular inventory movement is fine.
