The idea with wiresketching is to combine sketching which is a great way to ideate and be creative with wireframing, which allows you to change edit layouts easily. This way of wiresketching makes it possible to sketch quickly while still being able to edit, resize etc. I always liked sketching concepts and ideas but I didn't like the fact that I couldn't change them. I had to sketch a new version from scratch even if I only wanted to change some smaller things. There are many sketch software out there but none really make it possible to control your sketched lines in a good way. With this technique you can be fast and creative while iterating and adjusting instantly.