www.kogama.com/profile/667552880/ is I'm pretty sure reported over 100 times, got only sexual content in his profile and is still there after more than 12 hours selling this avatar that is inappropriate for that game.
These "raids" occurred during Weekend, unfortunately Staff has few chances to be online during that period. Around Monday, Staff took actions and deleted the inappropriate content, and also applied a temporary-solution to prevent those; as announced in the Official Discord
As we're fixing an exploit within our image service, it has been necessary to take it offline. [...] [...] Normal service should resume in a couple of days.
IP ban exist on KoGaMa, but like on any website, they can be bypassed using VPNs. However, yeah I agree it's inacceptable that it takes so long for them to take actions in this kind of moment, and that they don't have proper system to detect inappropriate images. Let's hope it'll improve