[Disclaimer: I'm a community manager at Stack Exchange, but my participation on ELL is in an unofficial capacity. On the main site, and for the most part on meta, I'm just a regular user.]
I'm a native speaker of English, having grown up in the United States. I like answering ELL questions because it's an interesting exercise in making sure my writing and my explanations are clear and succinct. Plus, I like helping people. :)
However, I recognize that teaching is one of the most effective ways to learn. Therefore, answering questions here is just as beneficial for someone learning English - if not more so - than asking questions. So, I don't want to step on the toes of people trying to improve their understanding of English through teaching others.
Is this something I should be concerned about? Should I limit the number of questions I answer in a time period, or wait a certain amount of time before answering to give others a shot? Or is it okay for native speakers to answer questions whenever/however they like?