I think it is your place, because it's your time being taken by people asking questions. It's an often a thankless job people do because they want to help. If you think you might be doing more harm than good by "just answering the question" you're not helping anymore, which then somewhat defeats the purpose many people are doing it. But really, the simpler reason is that, if your helping out others, your giving them your time, so they should respect it, so answering some questions while getting help is part of that respect.