This is 1 of 10 review bomb accounts from the Trader on SteamTrades known as;

"VASOKOLBASO",

https://www.steamtrades.com/user/76561198336244271

Having 10 SteamTrade accounts to bomb someones reputation because they upset you is against SteamTrades Guidelines.
"Users are limited to one account per person"

It is unprofessional and immature from somebody nearing +600 Reputation.

These are the known scam accounts of the mass negative review bomber ;

sasha https://www.steamtrades.com/user/76561198832071518
Uncle Vova https://www.steamtrades.com/user/76561198848793298
Halva https://www.steamtrades.com/user/76561198848855079
Депутат Рашпиль https://www.steamtrades.com/user/76561199017694664
avastspider https://www.steamtrades.com/user/76561199017436883
Обрыгайло https://www.steamtrades.com/user/76561198850724732
ohyesohnoyes https://www.steamtrades.com/user/76561198855247858