In an asynchronous medium like Slack or IRC, the effort _isn't_ wasted, because the question will stay there, allowing people to see it later who weren't even a

In an asynchronous medium like Slack or IRC, the effort _isn't_ wasted, because the question will stay there, allowing people to see it later who weren't even around when the question was first asked. Just like you don't email someone saying "Hey" waiting for a reply before you ask your question.