The simplest solution is to have the (Show IP) links next to the user links. Here's my reasoning:

• The links will appear whenever a user name link appears
• We can't guarantee what else will be on the page - e.g. sometimes user name links appear without the presence of user tool links (talk, etc)
• That way, we won't need custom code for different pages

In T326840#8520951, @Tchanders wrote:

The simplest solution is to have the (Show IP) links next to the user links. Here's my reasoning:

• The links will appear whenever a user name link appears
• We can't guarantee what else will be on the page - e.g. sometimes user name links appear without the presence of user tool links (talk, etc)
• That way, we won't need custom code for different pages

This makes sense. We can create a standard design for the different variations of this for people with rights (Show IP, IP info, both Show IP and IP info), assuming these variations are needed, unless Show IP will be an extra click away within IP info.

Mock below shows how these variations could look. In the situation someone has both IP info and Show IP, layout-wise it looks better to have the IP info after Show IP, since we would want the IP address to come directly after the temp account name. But user behaviour-wise, I'm not sure it works as well since presumably folks should be first looking at the IP info, and only revealing IP as a second step if they don't get what they need from the pop-up.