Your observations about how folks tend to communicate apply beyond AgoN. Online conversation in general often isn't and hasn't been for a decade or longer.
I've often thought that I should start sending thank-you notes to people I admire or who have influenced me positively, simply because it is a kind thing to let people know they are appreciated.
All our lives, others make extraordinary efforts to diminish us or make us feel "less than" simply as self-validation.
For my part, I thank you for your anti-misanthropic approach. Bravo!
Eliot Fischer