Randomthoughts
Adventurer
I'm a bit more tolerant of that b/c knowing that stuff is self-rewarding. Like in 7Worlds, one of the players runs a Psion (psionic). SWADE rules aren't that complicated tbh. So if that player hadn't read the general rules on Psionics beforehand, I would be fine explaining it (roll this to activate, spend X points, etc.) - again, mainly bc it's not that complicated. I've read horror stories of players who simply "don't get it" after several tries, but I hadn't experienced that myself.I understand this with one exception, character rules. If you choose a new class, prestige class, archetype, etc.. that bends or breaks the core system rules I expect you to know how it works. I'm pretty lenient as a GM in allowing 3PP homebrew things, but I expect a level of responsibility from the player. You at least need to be ready to understand how it works and explain during the session. If we end up sidelining things while you flip through books and net searches I'm going to lose patience with you. /end rant
But there is a point. I wouldn't explain what each of your powers could do. And that's why it's self-rewarding. If a player doesn't read what they do, they won't use it and hence not realize the full potential of their character. That's why IME these players will eventually learn or change their PC.
Since we play online, we don't flip through books