Every Sunday evening from 8.00pm CST, #blogchat takes place on Twitter. Hosted by the uber-smart Mack Collier, it’s a discussion by bloggers about blogging – tips, tricks, tools of the trade, best practices and more. It’s quickly evolved into one of the must-attend chat events on Twitter, and I never fail to come away with some cool new tidbits of information every week. Last night, an interesting side discussion popped up around the quality of blog posts. It stemmed from…