Hi John,
Killian is the OutSystems MVP that for the longest number of years helps the most on the forum, and knowing him, he for sure does not think he is too good for people. I am sure he didn't mean to upset you in any way.
Basic concepts can be learned on the Learn pages and documentation. Many people start their journey with OutSystems just be straight going into coding, and then run into problems that they then drop (many times badly asked with too little info) on the forum. I agree with Killian that following basic training and googling first the documentation before asking something on the forum, is a better (and more fun way, I think) way to learn the concepts of developing software with OutSystems.
You can ask questions on the forum, and people will try to help, or people will refer to documentation, sometimes people are not even able to formulate a proper question, and we ask for more information.
And last but least, also MVPs and Champions do not have the answer to every question.
Regards,
Daniel