it is ok to refute their claims if you have verifiable facts. just never send it directly to them. send it to one of your trustworthy buddies. this frustrates them and eventually they will screw up and you will be able to delete their posts. the easiest way to handle them is to get all posters to message over here. the tos rules here are a lot friendlier to real investors and mods can keep them under control. mods here should study tos rules on hangout and know them backwards and forwards and know that they will lean in your favor. that is why you don't see many bashers here.