Buckaroo Banzai: I know that you are trying to help and it its hard to criticize someone who clearly has good intentions. But I feel like you are perhaps giving advice here when you shouldn't be. I don't know what your history with japanese study is or what skill level you bring to bear (although your profile says you have never been to Japan), but it seems like you are trying to offer help on questions that are above your own level of japanese. There are a lot of people on this site of a lot of skill levels--some native speakers, some beginners. You will be able to help a lot of people, but there are some people, and some questions, that perhaps you would be better off leaving to the higher level speakers. Providing unsatisfactory or incorrect answers will only mislead people into thinking the wrong things, or perhaps cause more experienced learners to withhold their own advice, having skimmed the thread and thinking those questions have already been answered. Welcome to the site and I hope you continue to keep posting and helping people, but please, and I mean this only as advice, make sure you know the correct answer before offering advice.