Please explain. Note, this is not a comment about the teacher. Nowhere in my comment do I reference the teacher. >>>That's no justification to sabotage a mat

Please explain. Note, this is not a comment about the teacher. Nowhere in my comment do I reference the teacher. >>>That's no justification to sabotage a math Q&A site. I assume you mean: [learning a valuable lesson about the internet is] no justification to [knowingly post an incorrect answer to] a math Q&A site. I disagree, and I think that the justification the OP mentioned is an excellent one, for one very specific type of sabotage (posting an incorrect answer). I will try to paraphrase their justification: Someone who reads an answer on a math Q&A site and does not check to make sure the answer is correct will learn "a valuable lesson about the internet" if the answer turns out to be incorrect. I assume that the lesson could be that "thinking that an idea is true doesn't make that idea true true". A more specific lesson about math could be "check your work". In my mind, these lessons are both valid justifications for the one specific type of sabotage mentioned. Some people believe that checking your work strengthens your math skills, so the people who checked to see if the answer was correct or incorrect may have improved their math skills as well.