Get used to it. When their conspiracies fall apart under cursory examination, insults, personal attacks and accusations of being a "paid troll" are the only cards they have left to play.
Conspiracy theories are fun to watch but when folks think that hearsay is going to win in a court of law there a few bolts missing from the housing. You know it’s gonna come loose and someone’s gonna hit the wall, but you just gotta watch. :-)