Exhibit A: The internet.
I think that a good education on how to formulate an idea/construct an argument and some schooling on the history of ideas would lead to many improvements.
I also believe that of the grumpy people on the interwebs, the well-intentioned but woefully ignorant outnumber the downright malignant.
I do recognize that this would lead to better armed flamers and trolls, but I think that the benefits outweigh the downsides significantly. I think that the well-phrased flamer himself is an improvement over the club-wielder. This is because you can actually understand why they are being an asshole, even if they're dead wrong.
 - I want to reassure the reader that I include myself in the well-intentioned ignoramus category.