Does Blog Commenting still valid ?

Does Blog Commenting still valid ?
Well the bottom line about that article is that there are way to many SEO companies that are doing what I call "AUTO BLOGGING" and it's turning into the most ridiculous amounts of spam I've ever seen. My personal spam filter "AVH" that I run on my wordpress website/server picks up about 300 people a day that are trying to spam it with crap from foreign countries... I'm in the US obviously. In any event. I think Blogging right now is CRITICAL to your PR (authority, Page Rank) and online success. If you stop blogging you will see a dramatic DROP in the PR of your site as well as the overall traffic.. Stay active, keep articles coming, but NEVER use an "AUTOMATIC SUBMISSION" site to do this... EVER!
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