Valve would need solid proof to link k0nfig to the account. More than just linking 2 ips together. Your mac address can be spoofed and changed too. Well not exactly changed as it's hard coded but you can change your adapter and bam, new mac address. Your argument is probably going to be, valve can do what they want, which is technically true but there would be up raw if they could not provide solid evidence. I don't really know much about this, has k0nfig admitted to the ban or anything?