Tbh, to me nonsense negative reviews are a good sign. They don't influence my opinion about the product ("I'm not looking for burgers so I don't care that this guy was disappointed that there were no burgers"), but they show me that the company doesn't force the deletion of bad reviews.
I've had it a few times before that e.g. I went to a doctor with perfect 5-star-reviews, only to find out that they suck and they sue anyone who leaves negative reviews.
If I see perfect 5-stars on something, that's when I get really sceptical. I'd never go to a doctor, a restaurant or a craftsman with perfect 5-star score.