Those "uber 1337 haxxors" finally get the chop

[Walkiry]

I think that bugs are only as serious as their impact on the game is large

The interaction between Pierce and certain other skills including Frozen Arrow and Lightning Fury is the dominant feature of public BNet play.

People make cow games and wait for the Amas

People leave cow games if no Amas turn up (quite often they do anyway)

If intended then a rebalance is needed, if unintended then a fix is needed

It is intended, and it's been re-balanced. In the original release of the game, piercing would nullify those skills, as in the effect wouldn't go off if the arrow pierced the enemy. The chosen fix was for the effect to go off at every hit (instead of only the first hit and ignore piercing), and then re-balance, as the use of freezing + immolation arrow (without timers back then) would be absolutely sickening.

Then LOD came along and made it possible to have items with incredible damage and high piercing work at the same time (100% piercing buriza, titan's revenge and other magical and refillable high damage javelins and so on), and down the drain all the balance went.