User blog comment:Brandon Rhea/Ad Tests on Fandom/@comment-24527343-20170428053504/@comment-20644-20170428172430

We made the decision to remove See More Activity because its use was extremely limited. Barely anyone clicked on it. For some editors it was definitely a useful way to get to Wiki Activity, but the vast majority of people who use the site do not use that button. So we wanted to use that space for something that can bring more people into the editing community, which is why we chose to replace See More Activity with a link to the Community page. A well-built out Community page can be a great first entry point for a reader to become an editor.

That said, the new page header will have a link to Wiki Activity for logged in users, and you can always add it to your toolbar as well. So there are options for easy access.