Yes that's a knife, the suggestion was that a knife is not the proper tool for the job... somehow.

No I didn't. I said there was many different types of knives in the kitchen and they have different usages.

No he means me -- I probably did suggest this by accident by quoting all of one of your sentences but without replying to it all.

I personally do not find that the skin of fruit ever needs a particularly pointed blade, and I think that is usually an unsafe use of a knife.

I don't mean to suggest you don't need a knife for cutting things, but I would have thought that was an obvious bad faith interpretation.