I just don't understand why developers underprice their apps so much. You're talking about an app that people are constantly raving about, and that people use for multiple hours per day. Charge $5/month, that's half the price of Netflix or Disney+.
Complaining you don't get free stuff anymore is really unbecoming of an entrepreneur.
He wasn't complaining about that. He was led to believe that the price would be reasonable, and he was willing to pay a reasonable price, as he already pays Imgur.
Only Reddit knows how much money it loses per user who doesn't see ads.
Prices are a two-way street. You can name any price you like, but if buyers can't afford it, then you make $0.
This is why the developer himself can't just raise his own prices by any arbitrary amount. Buyers have some say in the price.