In the bay area, there's a constant stream of events that are in the spirit of the Cacophony Society - for example, http://allworldsfair.com/ , or the Lost Horizon Night Market ( http://blog.sfgate.com/inthemission/2010/12/13/guerrilla-nig... ) - and these things are put on by a community of people that's actually fairly small - I'm not sure they'd all self-identify as "Discordian" but, as a Discordian myself, I'll claim them.
This is seriously making me want to move to SF, because events as artfully crazy as these simply can't happen with any regularity in Singapore. There's just no cultural history for them to - no support or interest from the very pragmatic, have-to-be-up-early-tomorrow society over here. Sames goes for the very chill party mentioned by angersock: it just couldn't happen.
When I lived in Philadelphia I don't think there were regular events of that nature, so I guess it's mostly a Bay Area/SF thing? Manhattan certainly seemed more lively in that regard.
Also, having lived there myself for years, it's cold most of the year except in August and September, and because of its setting it's difficult to get to or from anywhere else (bridges and crowded freeways). And finally, it's very pretty and it has enormous charm.
To varying degrees you get this stuff in Austin, Portland, Seattle, Brooklyn...
And actually I've seen parties like the one angersock describes in places like Bloomington, Indiana and Huntsville, Alabama - it's a matter of knowing the right people, there's a network of social connections. I don't know if it reaches to Singapore, but it doesn't sound impossible to me.
When I lived in Philadelphia I don't think there were regular events of that nature, so I guess it's mostly a Bay Area/SF thing? Manhattan certainly seemed more lively in that regard.