Attacks and accusations won't prove your point. I see no sources. "People know", "they expect" are not legal requirement. To clarify, I'm waiting for a source

Attacks and accusations won't prove your point. I see no sources. "People know", "they expect" are not legal requirement. To clarify, I'm waiting for a source for this statement of yours: "When you sell a product, technical support must be provided as a legal requirement in tons of countries." This is, so far, baseless.