1. you didn't say you knew it
2. You didn't say it was "additional info"
3. Better that you bear in mind that you are out of your league in telling me how to speak English. If I'm growing sweet peas I am going to say they're sweet peas not sweet pea. I told you that you don't find everything on the internet. What's on the internet is all a product of human input and is subject to error, incomplete info and ommission.
4. You certainly do presume to know more than native speakers. You once told me that native speakers are often wrong when we were discussing the use of a certain word. You apparently don't remember that we have danced before.
6. 25 years is a piddling amount. The fact that you have been a teacher for 25 years and have an "above average knowledge" is far from making you an authority on how English is spoken in every day language in my country.
7. My age has little to do with it but yes, when you started teaching I was already 50 years old so I think am qualified to say how we actually speak our language, rather than how you would, or how you think we should. Your abilities are limited but you don't know it and can't admit it. What you, as a teacher, think is correct is a far cry from the reality of everyday language usage with all its bad grammar and slang. Thankfully, we don't have to adhere to proper English, with a teacher hovering over us all day long, and we can say "ain't" if we want to even though you think its unacceptable. What you might have learned from living here for a while does not qualify you as an expert. There are nuances and subtleties and words and phrases in every language which vary from region to region. NOBODY can know them all.
8. There are no free rides. If you post what I think is erroneous info then, if I see it, then I will comment. You don't have to defend yourself. That's your choice.
9. Don't hold your breath waiting for me to engage you in discussions by private messenger. If you post, I will address your comments as I see fit in open forum.