More details: Although neither was in operation, both pipelines [Nordstream 1 and 2] still contained gas under pressure. Poland’s Prime Minister Mateusz Morawiecki said the leaks were caused by sabotage, while his Danish counterpart Mette Frederiksen said it was “hard to imagine” they were a “coincidence”. https://www.aljazeera.com/news/2022/9/27/sweden-issues-warni...
Sabotage makes sense, but by whom? Surely Russia has no interest in sabotaging the pipelines that give them leverage over Europe. Without the pipelines, the whole "you lift the sanctions, we deliver natural gas" game is gone. Even if unlikely to happen, it would have been an important psychological and political factor over the winter. Meanwhile European powers don't seem to have an incentive. They would benefit from…
I don't think that's what happened, but I do see an incentive. If you can turn "we're going to increase the conflict by refusing trade" into "we'd buy, but you can't deliver", that's a potentially politically useful change. Also internally "we're taking a stance and sacrificing your comfort during the winter" is worse optics than "we need to deal with the situation where even if we wanted to buy from Russia, we can't; sorry for the inconvenience".