Banning someone for spamming/advertising its unfair + useless since like Shane said they dont do it on purpose. If we ban him , after the temporary ban he will continue the same thing again since probably he does not know how to remove it. The best solution like Grmbl said is that any admin use amx_clean on him or if there is no admin online ask him or tell him how to clean his config. Therefore no action will be taken.