It can be (and is, although not everywhere) used, for cogeneration - residual heat from any thermal plant used for district heating/industrial heating processes.
As for 'meaning something bad' and not being sure about it, why would you even respond? It's just a discussion board. Nothing we say here is important, it's not worth a glancing though to contemplate if someone somewhere on a comment section may or may not have meant something ill mannered towards someone else.
And in all self awareness, I have no clue on earth why I am downvoted, usually in retrospect it's obvious, but when discussing 'Bitcoin' one can never really tell (not that it matters).
Because everyone thought you were trolling with a dog whistle: “We need something (a bomb?) for you (Russia)”.
I mean, I'm cynical but I couldn't even fathom that even in retrospect.
Such as?
To be bluntly honest, I responded because I thought you might be advocating for violence against someone entirely based on their nationality |OR| that I completely misunderstood what your comment was about (which I definitely did here; sorry for interpreting your message the wrong way).
Even with it just being a discussion board, I would really regret not at least leaving a comment asking for clarification. I'm glad I did in this case, as I turned out to be completely wrong :)