I rarely share memes even though I've tried dmania for instance. I can totally relate to your feelings and even though I haven't muted or unfollowed anyone (yet), I might do it in the future.
However, I often look at other people feed's too, and some of them are just crazy. I can't understand how anyone can be satisfied with following 1000 different people and 500 of them are posting 3 memes per day.