Reputation is a perishable commodity. It is very hard to replenish it once gone.
Xwitter and Reddit understood it the hard way. Even if Unity goes back to exactly where they were before this ruckus - people will think twice before trusting them again.
The bucket is also increasingly full of bots and astroturfers. I think they're doing a half decent job of hiding the impact when it comes to numbers, but the drop in quality sheds a little more light.
I'm not sure they have, there's plenty complaints from users about the bad mods and so forth, but the numbers the C-level's look at have probably not changed enough to worry them.
Let's see in a year or two if the user base has changed significantly.
I would say so. Their front page is way different, and, in my opinion, worse now. Not sure if it's made a noticeable difference to their customer base, but from a consumer standpoint 100%.