Seems like there isn't really any substance to most of the negative reviews. I've never used Trustpilot before but after seeing this it doesn't look like something I would rely on.
Trustpilot is pay to play, so I wouldn't give them too much credibility.
They are also a proxy for Google revenues as they are one of only a handful of providers for reviews that show up on Google results. So you have to pay Trustpilot to get reviews to show up on your organic search engine results and Truspilot then goes and pays that to Google to be one of the review providers... and then Trustpilot also gives paying customers a lot of leeway to remove bad reviews.
My guess is that DO refused to pay Trustpilot and so a lot of the spam reviews don't get removed... and that's how this racket works.
They are also a proxy for Google revenues as they are one of only a handful of providers for reviews that show up on Google results. So you have to pay Trustpilot to get reviews to show up on your organic search engine results and Truspilot then goes and pays that to Google to be one of the review providers... and then Trustpilot also gives paying customers a lot of leeway to remove bad reviews.
My guess is that DO refused to pay Trustpilot and so a lot of the spam reviews don't get removed... and that's how this racket works.