Setup a package consisting of "The Elements of Style" and a link to copyblogger.com and one of two will prove beneficial for most bloggers.
First, battling over grammar and word choice shows that there are usually multiple interpretations and construction methods for a single utterance.
Second, grammar and word preferences change over time. While this makes a case for writing fashionably, it also means that really good writings are valued for content; good content can be expressed without strict adherence to guidelines. Rap, for example. It makes no sense to proofread rap.
In any case, there are no absolute rules for language use. This point is stronger when you have a large readership, and even stronger, when your readership has the ability to talk directly to the author, and perhaps even contribute.
The challenge is to be able to accomodate a huge number of these copy editors, who come and go as they please, shout or whisper their preferences, and somehow make the end useful and actually better.
Apparently, "good content" is one of those phrases subject to multiple interpretations.
notice that dfranke just proofread my post.