I'd back up Keri on that one even though I am the Lord of lousy grammar and run-on sentences. It would be worthwhile to find yourself a low-wage person w/ plenty of time (college english major, perhaps?) who could proof some of the current and old stuff.
I don't care much about grammar, and there are plenty of folks making 6 figures+ online who still can't figure out which version of their, they're, or there to use, but I bet hiring a college kid to proof old posts would reap you a positive ROI through some kind of deal you wouldn't have gotten before. Just a hunch... :)











