Earlier quoted context omitted.
The worst dark patten in my view is 1) growing an online community around a set of values 2) growing so big you eclipse all competitors 3) suddenly changing your values to appeal to advertisers. Reddit is in good company here, notably with YouTube and Twitter.
I agree that this process sucks. Do you think it's possible to do 1 and 2 without 3? How could a business that remains focused on benefiting free users compete/profit?
If Reddit had 10 employees and a $5 million annual salary budget, all the employees would be very well compensated, but they wouldn't need to raise $300 million from investors or aggressively pursue ad revenue by pushing an app to avoid ad blocking.
Personally I'm not sure if running as a pseudo-nonprofit would work or not. It's possible there's a cat-and-mouse game with spammers, astroturfers, and griefers that can only be solved with large numbers of employees and high revenue. Perhaps successful online nonprofit projects like Internet Archive and Debian have only avoided this because the don't have the combination of user-generated content and a large user base that make them attractive to spammers. Or perhaps the fact Reddit has so many more users than MetaFilter is a sign sites following this model just don't get big.