This happens with any social media. The great Digg exodus happened, and Reddit boomed. Reddit’s content and community grew healthily, then Reddit blew up exponentially, and now the content and community have grown sure, but very unhealthily.

Actually, unhealthily for what Reddit used to be (long form content and discussion), healthily for what it’s becoming (social media a la infinite scroll, chat, and notifications galore).

The point I’m trying to make is I don’t think this sort of effect is preventable - any community which encounters growth will see an influx of shitty content, unless you keep the community exclusive purposefully. Reddit just decided to roll with the punches so they could make some stacks on a nice IPO I imagine in the future.