To dissemble = disimular
in reply to a message by Gianfranco E. Tubino Bryce
To dissemble would be, literally the translation for "disimular" but in this case, the phrase would translate into something like "Troll in disguise", meaning that a person who is in fact a troll, is pretending to be dumb or playing stupid. Which I don't think is what happened here, this time.