STR/INT Piercing Damage?

[Ethelinde]

While grinding with my friends and chatting one mentioned that STR/INT points pierce armor, meaning that regardless of the enemies armor your added STR stats points will inflict the amount of damage it's supposed to inflict (+16 for 16 damage exactly), based on this assumption even if you deal only 1 damage on a mob without the points when you do add 16 points you will be hitting 17, is there any validity to that? I've always though STR and INT as useless points wasted, but if the damage does pierce armor it is perhaps worth investing into.