I need more context, I do not understand anything apart from the quote on the bottom, which is just a mere expression of dislike of something without any reason

I need more context, I do not understand anything apart from the quote on the bottom, which is just a mere expression of dislike of something without any reasons provided... > Ada was such a mess that I shuddered at the thought that Western security would depend on it and that I would feel much safer if the Red Army were to adopt it as well. Replace "Ada" with "Rust" or anything else (like Dijkstra's favorite programming language). It does not explain the why.