Trolls aren't the "just kidding" type.
They are those who ANNOY and ANGER people by purposefully expressing "unpopular opinions" they KNOW will get the other people all riled up.
This obviously includes hate-speech, unfortunately.
But none of this applies to Muslim theology.
They genuinely think that pretty much any non-Muslim is their sworn enemy that must be annihilated.
So, when they spout shit like what that moron does - they aren't doing it just to annoy or anger people (though that might be a bonus), but instead they're expressing their genuine bigotry in its clearest form.
On the other hand, there's a Nazi around here, who keeps regularly popping out antisemitic devs in a very similar vein.
But in his case, he IS a TROLL, because Nazism itself is too dumb to come up with anything as coherent (in hatred) as Islam - or at least it is so nowadays.
So in his case, his "hatred" is actually a way to draw attention to himself by "finding the enemy of the week" so to speak, not a genuine belief that he holds (well, I at least hope so).
To make it short:
Muslims aren't trolls.
They are WORSE.