I can't think of any reason why my Wikipedia contributions shouldn't be in the public domain. Therefore...
I agree to multi-license all my contributions, with the exception of my user pages, as described below:
Multi-licensed into the public domain
I agree to multi-license my eligible text and image contributions, unless otherwise stated, under Wikipedia's copyright terms and into the public domain. Please be aware that other contributors might not do the same, so if you want to use my contributions in the public domain, please check the multi-licensing guide.