I haven't read the other comments. I like those types of lists only as inspiration. If something doesn't resonate with me, then I don't buy it. For instance, I think that denim jacket is probably on several lists, and for years I didn't have a denim jacket because it just didn't feel like "me." Well, this past year I felt drawn to buy a denim jacket (my style changed slightly), so I finally bought one (after much searching for the right one). So my creative self eventually led me to what I needed, without the aid of the list. If I had bought a denim jacket prior to actually feeling drawn to do so, I'm guessing it would have ended up being culled.
I think the lists can be helpful for organizing your thoughts regarding what you want to prioritize for purchases. For instance, if you are reading a list and see a certain item, you might say, "Why, yes! Come to think of it, I have really liked outfits that use item X. I think that would be helpful to my style journey to have." Or you might say, "I hadn't thought of buying item X, but come to think of it, it would really make sense for my lifestyle. It might be extremely functional." And so forth.
But I think that buying an item for the sole sake of the item being on a list is going to lead to disappointment more times than not.