OPSkins was recently handed a ban by Valve especially for their foray into Valve IP and enabling Gambling websites. Despite the denials by Valve, OPSKins has regularly circumvented the ban and this time, they decided to enable gambling websites as well. Supporters of OPSkins would argue that the gambling websites just flock to the website and there is little that OPSkins can do about that. However, that is not true as is evidenced by this tweet below.
So not only did OPSkins allow gambling sites to use their "ExpressTrade" which would bypass the 7-day cooldown, THEY WENT AROUND AND REACHED OUT TO ALMOST EVERY SINGLE GAMBLING SITE PROMOTING IT
— Don Haci (@DonHaci) June 11, 2018