Maybe if mods were more transparent across all the subs.This is a common refrain I've heard going back well before Reddit ever existed.
I helped moderate the Vault Network boards for a while back when they were a thing.
Its hard to overstate how amazingly...disturbed and vitriolic some of the individuals of a community can be. And dishonest. And spiteful.
No amount of transparency helps when all it takes to refute any evidence is to label the mods as lying or "corrupt".
Let's say a user says something bad and you mod the post and give them a warning. You tell them exactly what the offense was and why it was moderated. They might even act civil in response.
Then you see later them talk about "X mod totally censored their post for no reason and refuses to explain why. X and the rest of the mods are totally corrupt".
So, what do you do? Post a screenshot of the private messages exchanged (something, for instance, we weren't supposed to do)? Take a screenshot of a browser window with the "mod view" (aka. uncensored) of the original post? Something said user will point out can be easily edited because well, its a browser showing a website, not exactly hard to alter).
And that happens every day, all the time constantly. And no one is being paid and there is a constant stream of other stuff you are trying to stay on top of.
And sure, some of the mods are shitty and "corrupt" in a sense. But I would say its as much a reflection of the community itself as anything.