Unfortunately your addon breaks the messages when a Battle.net friend goes offline:

Online message shows the name of that person, but offline messages don't show the names.

The problem occurs in following code:

text = text:gsub("(|HBNplayer%S-|k)(%d-)(:%S-BN_INLINE_TOAST_ALERT%S-|h)%[(%S-)%](|?h?)(:?)", fixLogin)

Commenting it out results in following:

• Online: [Friend] (Friend) has gone online
• Offline: [Friend] has gone offline

So the online message shows the name twice, but offline shows it once.