Some people have more time on their hands than others.
And, yep there are internet trolls out there.
There is this weird dude on one of the Mazda forums I visit as I maintain my daughters car for her who always chimes in that Mazda has garbage engineering. He has even commented on another posters comment that Mazda's were easier to service than his BMW. The troll stepped right up and said it was because of BMW garbage engineering. The word "garbage" is apparently his favorite description word to use, laughing.