Knowing that is part of “figuring it out”. A lot of people wouldn’t expect something that harsh to be possible and/or don’t keep up with news about gas fees. A mistake that will never be repeated but a mistake most of us have done the first time.
I personally don’t think it’s Russia(I think it’s Poland).
However the theory Russia did it or rather a sect of the Russia’s power structure did it is definitely plausible.
Many hardliners in the government saw the pipeline as a tool to negotiate with the West and a way out of the full scale war many hardliners are calling for. Blowing the pipeline has backed Putin into a corner.
The moderates on the other hand see the same thing as well. This forces Putin into a corner and weakens him considerably if the war goes badly (it was/is).
The only person who didn’t want the pipeline blown up was Putin himself. His power structure all had something to gain if the pipes were blown.
Many people say “well Russia wouldn’t do that” and they’re already wrong. Russia’s motives are not singular they are plural. There are competing groups within the Kremlin that are held together by Putin, not a singular will of Russia.