Had nothing to do with proving they were not humorless fascists. There was a legitimate need for a universal codepoint among Japanese cellphone operators. Keep in mind, Japanese is a language where frequently entire concepts are represented in a single character, so this isn't perhaps as odd as you think. "Poo" had a specific semantic in "cellphone Japanese" that the market demanded. To be used interoperably with other Unicode characters, various 'emoji' were added to Unicode. I, for one, retain the right to be called a humorless fascist.