Time: Since around 3pm Eastern
Frequency: Has been going on all day
World name: Lamia
Area and coordinates: Entire server
Steps:
1. Look at chat
2. See no shouts except your own
3.
<*Add more steps if necessary>

I have verified this by going to New Gridania and having my blacklist empty, usually you get a wall of gil spam upon loading.

Due to the Shout chat being down it's downright impossible to find FATE groups effectively.