I've been banned for 1 day, back when I dropped a bucket of my ban paint on myself...
Also, this would have gone in the Tavern (because of not fitting in any other section), but it's kinda not a good topic. You're just asking people to "sign"... And flaunting the bans you've got is weird, It's supposed to be shameful to have been banned, not something you happily chatter about.