I think there's an issue in doing that on a website - kobold, regardless of their reasons for reporting, isn't necessarily going to see and reply to this for some time, so it's just getting seen by everyone else to be speculated over. I feel like this should be a DM because in terms of modding you're the only one that really needs to hear his reasons in order to decide if he gets banned or not, and if his excuse is as bad as the report you can post the whole thing to the dredge tank for dunking.