Board Thread:Support Requests - Getting Technical/@comment-61573-20191230045226/@comment-9605025-20200209040541

They are not likely to perform an IP check unless you explicitly ask for one. Is the user already IP range blocked? Who set that range block? It is generally not a good idea to blindly set range blocks; that is why I suggested the IP check. /16 is probably way to large even if the vandal is using IPv4.