The banks balance their ATM's every day. They will know something is up and then check who used it and how much was dispensed. They will catch you, so yes you better give the money back as soon as possible.
I'm not sure what IRCd Freenode is using but most networks have what you call q-lined nicknames setup on the servers. NickServ would of course be one of those qlined nicknames. You can't use it unless you are a client connected from a services server, it doesn't allow incoming client connections, only pseudo clients from the services daemon itself. I'm guessing the NickServ hack was made by tricking the other servers thinking it was linking the services daemon.
The banks balance their ATM's every day. They will know something is up and then check who used it and how much was dispensed. They will catch you, so yes you better give the money back as soon as possible.
I'm not sure what IRCd Freenode is using but most networks have what you call q-lined nicknames setup on the servers. NickServ would of course be one of those qlined nicknames. You can't use it unless you are a client connected from a services server, it doesn't allow incoming client connections, only pseudo clients from the services daemon itself. I'm guessing the NickServ hack was made by tricking the other servers thinking it was linking the services daemon.