Indeed. We all (well, most of us) want sharp edges. I think that sentence just came out in a fit of the pique.I don't know if that applies to shavettes, but it definitely doesn't apply to normal SRs. A dull edge on a normal SR promotes nicks where as a sharp edge is much better at preventing nicks.
I was also attempting to sneak the word "nick" in. As a Brit the misuse of the word knick always amuses me: knicks = knickers = panties in American English (and also knickerbockers in American English), nothing to do with cuts either side of the pond.
Sheesh guys, I need to lighten up. I've been up all night. I'll go get some sleep now. Please accept my apologies for my rants.