haha love your responses. Fortunately I don't get too much trolling on Youtube but when I do I just respond to non-sense with nonsense and will respond with something like kidney whiskers or banana farts.
It's funny most of the time it's clear these trolls didn't even watch the video
A lot of times I will also get a ton of remarks of people telling me how something is and it was something I explained in the video. Like they watch 1 minute and then start telling me how something works that is explained later. It is annoying