Guildlogs

Buddylogs and guildlogs are toggles that allow you to see when
members of your buddy list or your guild/subguild log on, in
brown and pink, respectively. This is a toggle, and it works
independantly of the Logins toggle, so you can have Logins off
and only see Buddylogs, for example.

Toggle buddylogs/toggle guildlogs to turn it back off. They are
on by default.