I you go in to the clans&squad forum there is more clans who searshing for peoples than it is peoples who searching for clans....isint that strange or what!!!!
Like Bazooka Joe said, people would rather start their own and be instantly promoted than to join another clan at a low rank. I suppose people just like being in charge and telling other people what to do.
Hm I joined a clan when i was stil playin OFP, and started as Private. I made to Sergeant 1st class there in few months (which is quite good in a clan like that, 30 members) and still there were over 20 ppl commanding me, that really pisses off sometimes "Hey Wolf, u cover me I go to pee " I must agree, people like to command people but they don't like to be commanded.