+1 even if I disagree with item 3. What matters is the quality of the answer, not who gave it.

As one of the persons who closed it, I agree with what's been said here. The question was definitely interesting, but I had to consider the site's rules.

While a checkmark implies some guarantees that the answer is correct, it's not a certainty. Also fixing (obvious) spelling or formatting issues is very easy, but reading the whole answer and decide if it's worth a vote is not so easy. Especially if it's not quite my area of expertise and the answer doesn't provide sufficient explanations.

This happened to me too and in the end I've left the answer because some people found it useful. Though I mentioned that it doesn't solve the problem.