I like to add my "angry personality", jokes and crafty insults to my post to liven them up a bit and make them more interesting to read, but if you take all that icing away, the actual cake/bulk of my post will usually be a pretty serious discussion on why I think you're wrong.
Almost none of your insults are crafty or even jokes. It's rarely funny, and all you're going to do is isolate the opposite end of the argument. It's extremely rare that I make personal attacks during a debate, though it seems as though you just can't stop. People I'd call the most convincing users on the forum like Sir Dooble and SeventhSandwhich who have made me reconsider multiple viewpoints pretty much never insult users who they are arguing with. IkeTheGeneric tends to be a little more angry in his posts, but he still doesn't get overwhelmed by his insults and his posts are usually persuasive.
I don't think you're stupid and I think you argue as well as any of them, but if SeventhSandwhich opened up his post by calling me a "raging vegan cunt who needs to shove a sock in it" or something like that, I don't think I'd take the rest of his post into deep consideration.