Spoiler:
This is exactly what you should not reply to, ignore such posts as you have nothing proper to reply with. It does not matter what is said, the fact that you come off this way as staff is everything. If somoene takes a **** **** on your lawn and leaves a big fat brown **** stain on your porch. You should not reply in this way when your staff, you can view it like this your the adult and you should know better.
IF you are part of STAFF, then you simply do not respond in any harrasing, insulting, threatning etc. way. You dont that is why you deserve the staff insignia cause your better than the "shitters".