No, you can go down. A lot easier than you can go up, in fact. --- Core i5 3570k 3.4Ghz | GIGABYTE GA-Z77X-UD5H | Kingston HyperX Black Series 8GB 1600Mhz | 1TB HDD | GeForce GTX 660 Ti | Corsair CX600 | Corsair 300R Windowed
you can't lose gold unless you afk for like a month (28 days according to a redpost).
Divisions are reportedly very easy to lose. I'm not sure how - I'm getting significantly more LP than I lose and I'm not even that great. --- http://i1081.photobucket.com/albums/j360/voidgolem/Lagannrim_zps5e36b947.jpg