Note the common characteristics of all profiles.

1. All profiles post only 5 star reviews
2. All profiles post reviews only on other products with fraudulent reviews
3. All profile names are a single first name only
4. Almost all profiles use a stock photo as their profile photo

The list of profiles involved is below.

1; https://www.amazon.com/gp/profile/amzn1.account.AGPGFQ7Y4KTAWOIWOZKEBNYZYX7A/

2; https://www.amazon.com/gp/profile/amzn1.account.AFPADAPIDN6KNRRMEQAG76RRDCNA/

3; https://www.amazon.com/gp/profile/amzn1.account.AEOA4MBLWVZ7OB7P6YYBVFGVPPPA/

4; https://www.amazon.com/gp/profile/amzn1.account.AGUBJWEL7YOY4D2KCDNNDZP3JI4Q/

5; https://www.amazon.com/gp/profile/amzn1.account.AEFV74LY22GF3FCP5FZ7KCNKK7YA/

6; https://www.amazon.com/gp/profile/amzn1.account.AF4PCM25VA6XWNU6KWI2M35NONYQ/

7; https://www.amazon.com/gp/profile/amzn1.account.AHC3RGTGN2ZXKPZRUKFQAANHPVXA/

8; https://www.amazon.com/gp/profile/amzn1.account.AGKCW57VXRQ2MPX2STXUSM572VVA/

9; https://www.amazon.com/gp/profile/amzn1.account.AGFCOZ66OMEOOZVKGOGMJRD753KQ/

10; https://www.amazon.com/gp/profile/amzn1.account.AFQAUJSBV7RCHGKQYF6R7SMNTROQ/

11; https://www.amazon.com/gp/profile/amzn1.account.AGH3JUNM74HSSWALMCLH27VI5SIQ/

12; https://www.amazon.com/gp/profile/amzn1.account.AH37AEO7MJKMVMBBE3N3O476E2BA/

13; https://www.amazon.com/gp/profile/amzn1.account.AHB3DZQLR6OB4MJ6QPEISANCHOYQ/

14; https://www.amazon.com/gp/profile/amzn1.account.AFXA2ZAP5CRNVONOIBJWLKNTRRIQ/

15; https://www.amazon.com/gp/profile/amzn1.account.AEMCGUDYRL26LGCKP3NU5C6QKMMA/

16; https://www.amazon.com/gp/profile/amzn1.account.AHANDTFH2I5Q3XBOYKFU6J3SGU4Q/

17; https://www.amazon.com/gp/profile/amzn1.account.AFBO7PHS56GTECOPBV6ZHGWAD7DA/

18; https://www.amazon.com/gp/profile/amzn1.account.AEBW5SZK4SBSEIBDRCJPXD6MJXIA/

19; https://www.amazon.com/gp/profile/amzn1.account.AHBYFBC4YUIAHEKEECV5I5VLBIRA/

20; https://www.amazon.com/gp/profile/amzn1.account.AF6QADFQQMUIO5KV5Q47IR5WVLGA/

21; https://www.amazon.com/gp/profile/amzn1.account.AFGBCTTA5H5IICRV5BPSCSGL7VXA/

22; https://www.amazon.com/gp/profile/amzn1.account.AHFZGAQYXCUQHIU4UJ45HU4TGIJQ/

23; https://www.amazon.com/gp/profile/amzn1.account.AE2ZIWTJ2BBBUXTZMODKZR6NPFDQ/

24; https://www.amazon.com/gp/profile/amzn1.account.AEDJMQU4DAMMA63PCX4SSREX56HQ/

25; https://www.amazon.com/gp/profile/amzn1.account.AFDBFBHZYXOSCSZ64VVQGUODKVNA/

26; https://www.amazon.com/gp/profile/amzn1.account.AHQICUQIBEYYD7IDJEYOMHG7GMLQ/

27; https://www.amazon.com/gp/profile/amzn1.account.AHY66FMN7BRXJAIHJRU5DHCQVPNA/

28; https://www.amazon.com/gp/profile/amzn1.account.AG2DXS2A3D4NVLJPHLCUHUQ5MREQ/

29; https://www.amazon.com/gp/profile/amzn1.account.AGM4PG6CGEC3PR3KLD54LCYGOSEA/

30; https://www.amazon.com/gp/profile/amzn1.account.AGTVNUWRCFW53BG5B4F7B55KQNGA/

31; https://www.amazon.com/gp/profile/amzn1.account.AFBU2ILENXO56NHYFXKV27HOEMNQ/

32; https://www.amazon.com/gp/profile/amzn1.account.AEGJ7EJIAA6E3TGQKKZBYOMJWJIQ/

33; https://www.amazon.com/gp/profile/amzn1.account.AE5UAKS2YOV7F4FYE63KYNYRBLWQ/

34; https://www.amazon.com/gp/profile/amzn1.account.AF4PVUJ72BHBAWJPGL72FUAXUSIA/

35; https://www.amazon.com/gp/profile/amzn1.account.AFW36HXUWSRTXL7SW656TAWAAYGA/

36; https://www.amazon.com/gp/profile/amzn1.account.AFIV7XZ5CAM2T7Z5KLOPH2DPHSRA/

37; https://www.amazon.com/gp/profile/amzn1.account.AHLCK5G3KF2B6UQ2M4TNDXOVWW7Q/

38; https://www.amazon.com/gp/profile/amzn1.account.AEOIBU33MCU53IDTYVW74WE7LAVQ/