i use facebook, but i make it a point to never use farmville because it takes all the cute, quaint things about farming and shoves it all together, disregarding things that are very important to farming, such as waking up early, long hours, heavy work, etc...
i guess it gives people the illusion of doing something, or maybe it's something to occupy them... hey, if they want to be occupied, go outside and make a farm and be productive...
TMM