There is absolutely no need to blow pipelines for that. Pipelines which were paid in half by Russia. Russia was successfully limiting gas supplies by citing "technical" issues, which were likely to continue until some solution for political. Have you heard about any countries suing Russia for that?
The "technical" issues they cited wouldn't stand in court, especially when experts from the western companies that produced and installed the equipment testify that they are made up and/or trivial to fix.
Practically every country that has it's gas cut off is preparing to sue.
During the summer the price of gas on the European exchanges was often over $2000 for 1000 cubic meters. The long term contracts signed years ago had the price fixed around $200. Russia was losing a ton of money everyday these pipes were pumping gas. On top of that these deliveries were decreasing the global demand for gas - lowering the price Russia could sell gas outside of contract. There was a huge pressure from the top in GasProm to find a way out of those contracts.
