You may have noticed, the Linkshell portion of the page was redone. Now on the 'Edit Char' screen, there is a drop-down list of linkshells from your server. You can associate yourself with up to four of them. Some people entered incorrectly or misspelled there linkshell previously, you can now join the correct one if you see it on the list. Linkshells with zero people will be removed from the list.
The list is more efficient because it uniquely identifies linkshells by server. This will help when we add linkshell related features in the future. Also, a reminder, you don't need to link your char to SE's Linkshell Community to join a linkshell.