Just got an email from Trion trying to lure me back to Rift.
The subject was "Gaiscioch needs you back!".
The first paragraph of the body said "Gaiscioch has been busy hunting rifts and stamping out invasions while you've been gone, but the forces of the planes never rest. The ancient Architects are hard at work in the Dendrome, plotting the doom of this plane and others. Rejoin your guildmates and help Gaiscioch prepare for all that lies ahead!"
The mail included a link to a web version of the mail. Here it is if you want to see the full thing.
If their use of the guild name was not authorized, I thought you'd like to know about this email.