Sellers know people do this and plant fake, negative reviews on competitors at the same time they give themselves good reviews.

I noticed this once when repurchasing a space heater I'd bought multiple times in the past. Several reviews mentioned the temperature sensor failing, but this particular heater had no temperature sensor.

That isn't the only product I've seen with suspicious bad reviews, and I've read pieces of investigative journalism that confirm it's fairly widespread.

"Sucks" is one of the true casualties of today's PC climate. Used to be you could get all sorts of great opposing opinions with that search keyword, particularly in IT.

Sure, it's around here in there. But back in the day if you were going to write about why you didn't like something, you were going to write an article about why it "sucks".

That sucks.