The settings icon on the profile page is maybe redundant now but hardly a massive issue

I’d say, the settings icon should stay on the profile page and the tab bar should be used for some other feature. I don’t change my settings so frequently that they would warrant such a prominent place.

I don’t think it’s useful to put an eyecatcher to a post you already read, which this icon is. I prefer that they fade to the background because they’re less important.