Recently when I visit Ask Different the list of questions has some that are faded out. I included a screenshot.
Does anyone know why this is? I'm running High Sierra on my iMac. My browser is Safari.
Those are questions that have at least one tag which you ignored.
From the Help Center article "How do I find topics I'm interested in?"
Ignored tags downplay subjects you are not as interested in. Questions with these tags are faded on the homepage and questions list, but are still visible. If you want to completely hide questions with containing your ignored tags, you may checking the "Hide Ignored Tags" box in the "Preferences" tab of your profile's "Edit Profile & Settings" section on most sites, or on the "prefs" tab of your profile on certain other sites.