I only believe it because I know they line up in game to each take their turn doing "Kill 10 Vicious Wombats" quests.
For the record I saw people do this in Archeage on the EU server just yesterday so it's not really limited to Japan.
You are here alone again
In your sweet insanity
All too calm, you hide yourself from reality
Do you call it solitude? Do you call it liberty?
When all the world turns away to leave you lonely