I was aware of programmers.stackexchange but wasn't sure of the difference until now. Instead of closing questions on Stack Overflow with messages such as "This

I was aware of programmers.stackexchange but wasn't sure of the difference until now. Instead of closing questions on Stack Overflow with messages such as "This question exists because it has historical significance, but it is not considered a good, on-topic question for this site", it would be a lot more helpful to point people to a better home for such questions, such as programmers.stackexchange.