If the author is disturbed by criticism and nitpicking, they are completely right to make their words private. (The old saying "if you can't take the heat, stay out of the kitchen" is usually said in mockery. But I suggest that it can be read straight, not as mockery but as practical life advice.)

All that said: the author's words

> But, it's no longer worth it to me to offer my knowledge and wisdom.

seriously annoy me. What kind of pompous sense self-importance does one need to have to unironically claim to possess wisdom?