"Desensitizing the shin properly, is not going to cause any problem. The damage is the result of improper methods"
err, i think it might. the fact you have killed nerves is surely a problem in itself. the guy that wrote the article seems to know what he is talking about.
"If you get hit, you have bruises, desentisized or not. Bruises are blood clots, hematoma. How many cases of stroke as a result of that? How many cases of death as a result of that?"
quite a lot actually, and i think your missing the guys point. he said in some cases that blood clots can form. this is true. it happened to my dad just before Christmas. can it cause strokes, of course it can! no one is saying that a little bruise is gonna kill you. but a really bad bruise in a bad area, can, and will cause you serious problems. if you want to stick your head in the sand and prentend your invincible, thats your problem. i genuinely hope nothing bad happens to you. But dont kid yourself on that "conditioning" your shins will do you know harm. By definition you are damagind them.