Answeree is a new (less than two years old) Q& A site. It generate income mainly from showing ads from Google and other Advertisement platforms. I think they started promotion by adding product and promotional links in their own answers, not others. In this short period, they made a lot of changes in its appearance and options. I am an old member of this site and admin of Bloggers and Travelers Group/Community on Fb and G+. I dont know who is admin and moderators here.(Hope I will get a chance :)) One thing I am sure, you will get a quick response from admin.
One year back, I reached them with an offer, but they denied. They are not interested in paid promotions, guest posting and artificial link building. They said, they are ready to pay members for good quality contents but not for promotion.