well, i think you were correct. i'm 95% certain the individual you are referring to was trolling. but... that's because i'm also familiar with an older, less commonly used definition, which is playing stupid/asking an incredibly stupid question just to see how many bites you'll get. granted, i'd have to say that those kinds of trolls are at least less offensive than what most people commonly consider trolls nowadays.
i.e. even though i still consider it trolling, i'd much rather read a painfully, blatantly disingenuously stupid question than some a**hole spouting hate.