The ECHR seems to constantly ruling against the current political regime in Russia, such as in the lawsuit by former Yukos shareholders. While Russia can obviously ignore any ruling they don't like as the ECHR lacks any enforcement mechanisms, I still don't understand why Russia is bothering to stay under its jurisdiction.
So why won't Russia leave the Council of Europe and absolve themselves of any responsibilities towards the ECHR?
Update: looks like they finally did, 5 years later