It is an invasion of privacy. Not everyone might want you to know their IP. Also, a program like mIRC often shows the mask as formatted by the ircd you're on, not the actual IP.
If you want someone's IP, how about .... asking for it.
Ip-show - by Crossss on 05-26-2006 at 08:50 PM RE: Ip-show - by ins4ne on 05-26-2006 at 08:53 PM RE: Ip-show - by GiantSpider on 05-26-2006 at 08:55 PM RE: Ip-show - by Crossss on 05-26-2006 at 09:00 PM RE: Ip-show - by Fanta on 05-26-2006 at 09:08 PM RE: Ip-show - by ipab on 05-27-2006 at 10:18 PM RE: Ip-show - by ShawnZ on 05-27-2006 at 11:01 PM RE: Ip-show - by Reload2 on 05-28-2006 at 12:57 AM RE: Ip-show - by linx05 on 05-28-2006 at 05:06 AM RE: Ip-show - by WDZ on 05-28-2006 at 05:39 AM RE: Ip-show - by andrewdodd13 on 05-28-2006 at 10:29 AM RE: Ip-show - by Menthix on 05-28-2006 at 11:05 AM RE: Ip-show - by ShawnZ on 05-30-2006 at 12:12 AM RE: Ip-show - by Chris4 on 05-30-2006 at 01:11 AM RE: Ip-show - by Steven on 05-30-2006 at 01:16 AM RE: Ip-show - by ShawnZ on 05-30-2006 at 01:29 AM RE: Ip-show - by Nathan on 05-30-2006 at 01:38 AM RE: Ip-show - by Pyroteq on 05-30-2006 at 05:57 AM RE: Ip-show - by TiN on 05-30-2006 at 10:07 AM RE: Ip-show - by Mentality on 05-30-2006 at 11:00 AM RE: Ip-show - by Steven on 05-30-2006 at 11:17 AM RE: Ip-show - by Nathan on 05-30-2006 at 11:17 AM RE: Ip-show - by Mentality on 05-30-2006 at 11:21 AM RE: Ip-show - by Steven on 05-30-2006 at 11:23 AM RE: Ip-show - by Mentality on 05-30-2006 at 11:24 AM RE: RE: Ip-show - by Crossss on 05-30-2006 at 12:39 PM RE: Ip-show - by Menthix on 05-30-2006 at 01:05 PM RE: RE: Ip-show - by Crossss on 05-30-2006 at 02:03 PM RE: Ip-show - by Jhrono on 05-30-2006 at 02:41 PM RE: Ip-show - by Mentality on 05-30-2006 at 04:36 PM RE: Ip-show - by Menthix on 05-30-2006 at 04:42 PM RE: Ip-show - by Voldemort on 05-30-2006 at 05:26 PM RE: Ip-show - by Plik on 05-30-2006 at 06:19 PM