I promised to start this thread here.
I don't recall how I became a scholar. I became a sage when Mfbrownbear led a concerted effort to have fun and get people rated up, culminating in This epic thread.
I consistently rate up everyone contributing anything insightful, useful or funny to the eq alla boards --in my opinion this also includes community participation threads like the weekend update. I have "scholar dinged" quite a few, as I imagine many others have (look to the big post folks, they do alot around here).
I only rate down EULA breakers (i.e., gold sites), over the top nastiness (this isn't the asylum)and the very rare piece of intentionally misleading info.
Perhaps the bigger question is why aren't you a scholar?
If you have less than 300 posts and post here regularly... my approach alone should have dinged you.
If you have a huge post count it's harder to budge your status. Check threads like This where you see that bbot is a scholar and Yther is a sage... obviously both contribute enough to be higher ranked (both GURU in my mind).