It doesn't affect them directly, but the moderation tools a lot of subreddits need are built into third-party apps because Reddit refuses to build mod tools itself, and when those stop working then the job of moderating large and active subreddits will become vastly more cumbersome and frustrating, and far less efficient.

Maybe this issue only affects 0.1% of users, but those 0.1% of users do a lot for the site that depends on functionality that Reddit is unable or unwilling to provide.

It also seems as though a lot of moderators of larger subreddits are starting to see how little their users understand and appreciate the amount of work that goes into moderating a subreddit. When those mod tools are gone and their jobs get harder, they're going to get shat on even more than they already do by those users, because of the issue that those users said was just "a bunch of dorks with no lives getting worked up over nothing".

Curious to see how this all shakes out.