Hi all, I think we might have missed that topic before, so I'd like to raise it now, when we are only at the start of the competition, and the eventual losses are smaller :-)
One of the main ideas of Wiki Loves Monuments, and I think that we all agree about that, is to make the competition as easy as possible for the participants. In this spirit, several of our tools (including the UploadCampaign) were designed, and we also agreed on some of our basic principles at the 2011 meeting in May that some of you might have participated in.
One of this principles was to choose only one licence acceptable for all pictures uploaded as part of Wiki Loves Monuments--and, for obvious reasons, this licence is the Creative Commons Share-Alike 3.0, also knows as CC-BY-SA 3.0.
To achieve that goal, we have enabled only this licence in our UploadCampaigns on Commons; so if you see it's there, please /do not/ change it or add other licences; this would only make things harder for those of the participants that use the UploadWizard--and they are mostly fresh newcomers, who have never heard of MediaWiki before.
This is more of a philosophy idea than a copyright-related thing, because obviously nobody is going to check pictures uploaded by Wikimedians with Commonist or other mass-upload tools; if you want to read more about the original philosphy behind the competition, please go to https://commons.wikimedia.org/wiki/Commons:Wiki_Loves_Monuments/Philosophy; it really is an essay worth reading.
All questions are, as always, welcome. Thanks, Tomasz