Itzik Edri, 21/09/2012 21:33:
I published here Wikimania 2011 costs & income: http://meta.wikimedia.org/wiki/Wikimania/2011/Budget
Thank you very much for starting this discussion and publishing this. In the past I've had a really hard time finding some data, e.g. for 2009 all I found is this: https://meta.wikimedia.org/wiki/Wikimania_2009#Expenses See also the related discussion here: https://meta.wikimedia.org/wiki/Talk:Wikimedia_budget#Wikimania_travel_quest...
I'm not asking everyone now to start digging for their costs in 2011, but I think we can start do it from this year.
I posted here WMIL travel costs: http://meta.wikimedia.org/wiki/Wikimania/2012/Budget/Chapters
WMIT travel costs are, I believe, detailed enough in the annual financial report, so I hope it won't be too hard to collect such data. (I've taken the liberty to do some copyediting.)
I'll be happy if the chapters and the WMF can post their costs also and I'm encouraging Wikimania 2012 local team also to post their conference costs and incomes.
I think this transparency is important, and this knowledge about the total costs to the movement is also important to others who planning Wikimania in the future.
I also think that full details should be disclosed on wikimaniateam wiki, internal wiki or whatever, so that future teams know.
Nemo