There is this theory going around by “giveaway bloggers” that non-spammy comments can cause a Google penalty. You can read about it over here and over here – where you can see that an SEO told this site that they are penalized in Google because of the bad comments they have.
So what is the real deal? Should you institute a policy like these “giveaway bloggers” did to remove any comment that is less than three words? Um, yea! I get tons of comments here and anyone who leaves a three word or less comment, 99% of the time, it is not adding any value. Those, “thank you for posting” comments are always about getting a link back to their sites. I do my best to delete those not because of Google, because they waste your time as a reader on my site.
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