Trustpilot removed my positive review for no particular reason. They sent me a canned email that listed several "possible" reasons for their action. But I could could submit documents verifying that I was a valid reviewer. I sent in the documents and they just sent me the same canned email again. And did not repost my review.
I did read in other reviews that they purged thousands of reviews because they had been criticized for having a bunch of bogus reviews. Looks like they just pick and choose what ones go and which stay because their vetting system is an absolute failure.
Recommendation: Trustpilot is just a collection of arbitrary reviews that fit their bottom line since they make their money selling services to companies being reviewed. Search on Trustpilot SCAMS.