Last modified: 2012-05-15 14:25:38 UTC
In RC, registered users have ( talk | contribs ) link after the user name and for IP users, only the ( talk ). Is it not better to have also the ( talk | contribs ) links ?
I think that's because link under the IP address points to IP user contributions (instead of the userpage).
Marcin is correct, IP addresses do not have a user page so clicking on their "name" will take you to the Special:Contributions for them. A feature not a bug. ;)