@ Bella… No, currently there’s no way for users to delete or opt out of their activity being shown in the feed.
So, these are the only items which get shown, nothing else.
– when a new user registers (more specifically, when their account is approved and they have full access to the site)
– when a user changes their profile picture.
– when a user updates the info on their profile (for example, they change their About Me description)
– when two users become friends.
– when a user posts in the forum (new topic or reply)
– when a user posts a personal ad (new ad or reply)
– when a user does a quick update using the “What’s New?” form (shown at the top of the feed)
What’s it for? Good question. I suppose it’s just a handy way to get an overview of what’s going on on the site.
Is it necessary? Probably not.
Is it useful? Maybe.