Things to consider: depending on the color, width, and direction of the stripe can totally change the feel of your room. In my opinion, vertical stripes seem more energetic and busy, while horizontal seem a little more calmed. Also, the thinner the stripe, the more busy it's going to be. If you read this post, you already know what colors promote energy, and which are more relaxing. So taking this all into consideration, if you want a visually dramatic look, I'd do something like the first picture (multiple energetic colors), or the fourth picture (vertical, thinly spaced). You can find inspiration for a less dramatic look from picture 2 (horizontal, cool colors, wide width), or picture number 3 (the bedroom section: horizontal stripes, soft colors, wide width).
If you like this look but are worried to paint a whole room with stripes, look for a smaller space in your home to apply it: an entry way, a kitchen nook, a reading area, a mudroom, a hallway, a bathroom or even as an accent wall. I suppose the most important thing to remember is to have fun!
So here's the real question: would you ever paint stripes on your wall? Why or why not? And if so, what colors would you use and what area of your home would you paint?