At least it certainly doesn't reflect in the tooltip or physically that I could tell (tested on Cleric with # of auto attacks based on different amount of + all skills). Perhaps I didn't hit a breakpoint.

I could test further, but the skill level should be reflected in the tooltip regardless.

Oh, uh... I think you're misreading? +skill means all of the "Skills" on the main tab of the character sheet. Not the talents.

Aw. That makes sense. I was thinking Diablo style.

Roger that. It's easy to get confused. There's a lot of crap in this game. I need the wiki just so I can remember how my own game works.