This seems like a great service. The world is moving more and more towards using English as a universal language, and I think that plenty of non-native speakers

This seems like a great service. The world is moving more and more towards using English as a universal language, and I think that plenty of non-native speakers are at a disadvantage, because they cannot communicate their ideas well enough. For example, of the best-selling business authors, how many are non-native English speakers? I bet not that many. That means that English speakers have a disproportionate influence.