> and hope that this scares the EU into stopping supporting Ukraine
This absolutely doesn’t make sense. If the pipeline is gone, EU does not have any incentive to settle with Russia. Like, “whatever”, no pipe, we send tanks to Ukraine because you have nothing to offer to us anymore.
1) there are multiple OTHER pipelines from Russia to the EU, and NatGas can be shipped by sea (as is now being done from the US); NS1 was not the only route, and NS2 was barely online, and already Germany was heavily dependent on Russian supplies. So it would still be easy to make a settlement with Russia to get more NatGas and oil if the EU wanted.
2) Russia has a LONG history of creating non-military disruption in target countries to gain advantage. Simple disruption of the political situation in the EU is very advantageous to Russia, they would hope it causes at the very least a diversion of funds and attention from supporting Ukraine to dealing with domestic unrest.
3) A new pipeline from Norway was opened literally the same day. This sends a message: "Nice pipeline you have there, it'd be a shame if anything happened to it.". This further creates uncertainty and stress in the EU.
All of these benefit Russia and it's Ukraine genocide efforts directly and significantly.
That said, there is definitely the possibility that it could also backfire, and strengthen the will of the EU to avoid Russia as a completely unreliable and exploitative supplier, and as you say, reply with "FU, we're sending more tanks to Ukraine". I sincerely hope so.
The gas is apparently still flowing out of the pipes at pressure - this can happen only if Russia is still pumping, for which the only purpose would be to spend money to create an environmental disaster - another distraction/disruption.
This absolutely doesn’t make sense. If the pipeline is gone, EU does not have any incentive to settle with Russia. Like, “whatever”, no pipe, we send tanks to Ukraine because you have nothing to offer to us anymore.