I've only been playing for a month or so, but of the many (relatively) minor but still 'wtf?!' things I've seen in this game is the ability of monsters (humanoid and other) to fire straight through walls, trees, and occasionally hills and boulders. Not start an attack and complete it even after you ducked, but to happily stand on the other side of a three-foot-thick masonry wall and hit you with arrows. Or seeds. Or spit, whichever.

This is beyond ridiculous. I honestly don't care if this is considered a bug by the devs or not, as far as I'm concerned it's a nearly game-breaking bug and needs to be fixed.