I understand the 3.5/Pathfinder hate. I really do. If you're a hardcore roleplayer who doesn't want to by limited by anything but you and your playgroup's imagination, that edition isn't for you. Pathfinder is heavy with mechanics. Everything has a mechanic. If it is an action or state of your character, there's a dice roll or a chart that compliments it. Sure, it's all optional, but the fact that it exists will probably make your players whine about how you're not sticking to the rulebooks.
But what if your players are already airshitting pedantic smartasses? What if your playgroup consists of a couple of smug dudes who always shoot back with a "Well ackshully, that wouldn't work because..."
That's why I use 3.5/Pathfinder. There's a mechanic. Fuck you, Todd, you self-rightious prick. I'm trying to DM don't give me some half-baked argument about the density of water just so everyone at the table can see how smart you are. Here's the chart. Here's the book.
>I have shitty players so instead of fixing them I'll force us all to play a shitty system