I use kde-telepathy on Kubuntu 12.04. If I do a "show info..." it always shows that the "Contact can see when you are online" field is false, at least for AIM. (For gtalk it seems to work properly.) The kde-telepathy developers have told me that they are simply showing what telepathy is reporting, so I am reporting the bug here.
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This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/telepathy/telepathy-glib/issues/143.