What's With Advertisers in the "Comments?"

I've been on a six-month break from blogging until recently and I notice a change in the culture. Comments to my blogs tend to come from advertisers! If this trend is as it seems and continues, it signals decay. I enjoyed the back-and-forth with those who agreed and disagreed much more than getting notes from people trying to sell me shit.

I've also dropped comments just to take a poke at others with whom I've disagreed. Some responded irately. I'll bet those now receiving ads pine for the days of dissenters.