Oleg, it seems there is a petition against DRM appearing in future games, and some people are not happy if SoW does follow this (due to Ubisoft)
Is Ubisoft still the publisher or SoW? As if they inforce their DRM policy, then many people will choose to not buy SoW...
...see here
http://www.sas1946.com/main/index.php/topic,5277.0.html
EDIT_see here for a better example
http://www.petitiononline.com/ew15dl94/ over 13000 votes against the DRM policy.