In addition to your findings, they have a lot of "fake" reviews prior to their creation date [2021-01-27]:
- I strongly believe that all of the comments are fake.
- Antminer S19 Pro 110Th/s [archived]
- First three reviews are fake. - Innosilicon A10 Pro+ ETH 750Mh/s [archived]
- First one is fake. - Innosilicon A10 Pro ETH 500Mh/s [archived]
- First two are fake.
I checked their "About Us" page for plagiarized content and got the following result:
- Original [archived]:~Snipped~
Bitmain is now among the most recognizable companies in the cryptocurrency space and the proud parent of several brands, among them Antminer, Antpool, and Hashnest, all of which are ranked number one in their respective fields. Our machines and customers are present in multiple locations in almost every country of the world.
We remain devoted to the production of high quality and efficient computing chips, high density server equipment, and large scale parallel computing software.
We are proudly headquartered in Beijing, with offices in Amsterdam, Hong Kong, Tel Aviv, Qingdao, Chengdu and Shenzhen. - Fake [archived]:Quote from: https://minerstreet.net/about-us/~Snipped~
Miner Street, Co. Ltd., is now among the most recognizable companies in the cryptocurrency space and the proud of sales and service several brands, among them Baikal, Bitfily, Bitmain, Canaan, Ebang, Halong Mining, iBeLink, Innosilicon, MicroBT, Obelisk, PandaMiner, PinIdea, Spondoolies, StrongU, FusionSilicon, and Hashnest, all of which are ranked number one in their respective fields.
We remain devoted to the sales and service of high quality mining computing server, computing chips, computing graphic card, computing server, mining computing server. and large scale mining computing system.
Our machines and customers are present in multiple locations in almost every country of the world.
We are proudly headquartered in Shanghai, with offices in Shanghai, India, Hong Kong.
~Snipped~