So, as part of what the Community user does, it owns edits that were suggested by anons (such as this one). Some people might not know this, so they wonder why it's happened. Rolling over Community's avatar for the expanded usercard gives this:
Hi, I'm not really a person.
I'm a background process that helps keep this site clean!
I do things like
Randomly poke old unanswered questions every hour so they get some attention Own community questi...
...which makes sense because that's what its profile says. But given that having a post/edit with Community's avatar is relatively rare, how about it be given a profile summary of something like:
Hi, I'm not really a person. I'm a background process that helps keep this site clean!
You're seeing me here because this post or edit doesn't belong to a user.
This would save having to go elsewhere for an explanation. (It would also get rid of the kind of ugly condensing of the bulleted list.)