Since I could sent an @ message to multiple protocols without gwibber knowing who I'm talking about, I think it would be best to follow the latter part of your suggestion, and remember (by protocol) the nicks of everybody who has ever written a message that appeared in Gwibber.
Since I could sent an @ message to multiple protocols without gwibber knowing who I'm talking about, I think it would be best to follow the latter part of your suggestion, and remember (by protocol) the nicks of everybody who has ever written a message that appeared in Gwibber.