There is something overbearing about writing in ALL CAPS. Something very boisterous, like a Siberian Husky before a street dog.
That said, there is something insignificant about writing in small non hyphenated words. Something very timid, like a street dog before a Siberian Husky.
If you look close enough, you will be amazed at how, the way you write, can convey the way you want your writing to be read.