I feel like Sketch is someone who takes everything pretty lighthearted and nothing too seriously. Can't imagine getting upset about his jokes unless they're actually hitting home. I've never seen him like, do or say something stupid or randomly act ignorant outside of it. Like when he was teasing you about your friend, some guy named Fraser. I doubt you would get really upset about that unless there was some nefarious connection between the two of you. I think
@Trotsky having that immediate reaction (surprisingly) just as
@Sketch exactly predicted almost word for word, is more telling to the situation than Sketch trolling comments and joking around.