Anonymous actions in Activity Log

Some events in the Activity Log are anonymous. i.e. there is no info about which user performed them and what their role on the site is.

#### Steps to reproduce
1. Open the Activity Log for a site for e.g. at https://wordpress.com/stats/activity/oikotimes.com?page=3

#### What I expected

Every action should have its actors name at least and an optional role.

#### What happened instead

I just see this message:

> Allowed anonymous comments
> Setting changed

#### Screenshot / Video

There are also other types of anonymous actions for the following two activities:

> Portfolio projects enabled for this site.
> Setting changed

Screenshot 1:


screenshot 2:

Screenshot 3:

> Disabled tracking each scroll load as a separate page view in Google Analytics
Screenshot 1:

## Site info

- Site URL: https://oikotimes.com
- Plan: WordPress.com Business plan (Atomic site)
- Chat: #4215782-hc