Hi Chris, here’s the definition I use for Didactic (beside it being a familiar Greek word used by both my parents – who are or were teachers). This one is taken from Merriam-Webster (item #1):

a : designed or intended to teach
b : intended to convey instruction and information as well as pleasure and entertainment

Hugs, Homer 

ps. Would like to see a blog with critical comments but without negative remarks…do you think it’s possible?