Don’t you know Comrade, Putin had a good reason to blow up the pipelines to help his Gazprom buddies. They have contracts with Germany to provide gas to 2030. Apparently Germany has to pay even if gas is not delivered ‘til 2030. If Russia turns off the pipeline Gazprom has a weak court case. If someone else blows up the pipelines, the case for Gazprom is much stronger.
While I wouldn’t be surprised if Russia is responsible for sabotaging the pipelines, whoever did it sent a message that they are “all-in”. Putin had also sent a similar message by annexing Ukrainian territory, so doubling down would not be a surprise. If it was the west, then they basically took the gas bargaining chip off the table.
Since the NS1 was running at 12% capacity, and NS2 at zero, Putin wasn’t making any money from them anyway. The sabotage drove gas prices higher, in the short term helping Putin stay afloat and fund the war.