Indeed. A weapon doesn't have to break skin to cause damage. The force of the impact can cause the loss of hit points. Even if it just winds you, 4E is quite explicit that hit points are not just physical damage, so that fits as well. (Just like 1E.)Where is the assumption that weapons cut *through* plate mail? I kind of assumed (based on the fact that players aren't constantly replacing their plate mail) that it was just getting dinged and battered...
In 3rd edition, you had to inflict injuries to poison people...how does a dagger not cut through plate mail to poison you?Where is the assumption that weapons cut *through* plate mail? I kind of assumed (based on the fact that players aren't constantly replacing their plate mail) that it was just getting dinged and battered...
That's your opinion, not anything remotely resembling fact - especially considering this is a fantasy game - where characters don't even have facing. Like the man said, most weapons in the PHB shouldn't be able to cut through Plate Mail in the first place.
- Marty Lund
I used to feel the same way about pole-arms in 1st and 2nd ed, but I feel that 3rd and 4th handle it well.
Aren’t secondary attack modes and the ability to keep a foe at bay two important aspects of pole-arms? How does 3e handle these aspects well?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.