Furcadia has--or had--potential, but it has seriously gone wrong. Its roleplaying universe and system, with its detailed pantheon and geography, its strange but original brand of vampires, and its unique philosophy of player-character interaction, made it worth looking into. However, the Furre! RPG rules are poorly designed; they are convoluted and incomplete, with half-explained skills and statistics, tables of conflicting information, and HTML that refuses to print properly.
All that is just the tip of the iceberg of Furcadia's brokenness. The yiffers, twinks, and Goths residing in Furc make it fall far short of its kid-friendly, PG-13 ideal. Perhaps Furre! would make a decent MegaZeux game...