That was something I only learned recently. I bought into reviews when I got my Klipsch subs and the Deftech SM55's. I got a great deal on both, but reviews I read weren't all exactly accurate. The RPW 10's I bought were "powerful", and "musical", "dig deep", "great bang for your buck"... The smallest, least expensive SVS had to offer blew them away.
I've always loved music, good audio and nice equipment. For a while we were struggling financially, so I just didn't torture myself looking at stuff I knew I couldn't get. That's all behind us now and lately I've been finding myself with more play money and I got back into it. Started with the tv (ours was ancient) and it blew up from there.
But yeah, for a lack of experience with critical listening and not being familiar with a lot of the new brands I relied heavily on reviews. I had no clue what to buy. It wasn't until after I got here I discovered what I had was mediocre at best. Sometimes it can be a bit gruff and impatient, but it's always truth. I think this is the only site I trust for opinions.
You might not always get a flowery reception, or you may not like the answers, but there's no bullsh1t here. All the reviews and a lot of the comments are all backed up by science and careful measurements. I totally get why some companies won't submit things for review. You only do that here if you're confident you have a good product. I've learned a lot since I've been here, and have never been steered wrong. Right now I'm learning how to understand all those charts now thanks to a link from Bored. I feel a lot more confident with my purchases now.