I am not attempting to troll. That being said, me saying this is a moot point, as if you assume I'm trolling you'll just assume this post is trolling also.The source of my irritation is thelonewolfing, who appeared to be trolling from my perspective.
If you want to get technical about it, "In video gaming a nerf is a change to a game that reduces the desirability or effectiveness of a particular game element." (Wikipedia)The guy doesn't even know what the term nerf even means and decided to dominate the thread with ignorance, so my response was pointed at him. Nerf is associated with balancing, not bug fixes and exploit fixes.
All of the changes I outlined above were nerfs, as per the definition. They all reduced the desirability or effectiveness of a particular game element. I am not commenting on whether or not they were justified, I was answering the OP's question: "Which ones have you guys noticed that seemed to have nerfed for the worse?"