You might get into trouble with copyight laws for one thing since the vocalodis are only licensed for used with the Vocaloid software. The studio that made the vocaloid, Yamaha and label holders of any songs you use it for can target you.
Secondly, when everyone finds out you'll be hounded by the fandom, particularly if you hand out the vocal.
Thirdly; why would you do it? the UTAU software is less quality then the Vocaloid software and most Vocaloids experiments have been proven to give out disappointing results.