Clearly US and EU perceived the pipeline as a threat to the point where US president is on record saying that he'll bring the pipe between Russia and Germany to the end. So you're saying that Russia did just that themselves to make some point

that point being that they can shoot themselves in the foot? You are aware that there are other gas pipes besides this most critical one for Russia, and Denmark is part of NATO last i checked. Is that your best theory?
Gas prices going up benefit Russia. They've done this trick many times, including recently with the NS shutdown shenanigans. But what do I know, maybe Biden blew the pipeline up to help Putin finance the war. Weirder things have happened.
You disappoint me, weakest one so far!! No aliens, or Germans were some kind of triple agents that why RU decided to take them out? At least please tell us that you're some kind of underwater pipe expert? These kind of weak arguments would be a hard sell even for the most retarded mass media consumer!
NORD STREAM is feared to have been damaged beyond repair and left crippled indefinitely after it was torn open by a series of explosions.
https://www.thesun.co.uk/news/19945821/nord-stream-damaged-beyond-repair/Sure, Murdoch's tabloid knows best. You can also quote Tucker Carlson, another Murdoch employee and Kremlin's darling.
Unless "beyond repair" means "Germany doesn't buy enough gas from Russia anymore to justify the cost of repair", which might actually be true. But that invalidates the rest of your conspiratardery, doesn't it. Europe's not gonna freeze this winter, etc.