I use the heck out of KS. It sucks that you have to follow some of the stupidest rules ever but the rules are there because scammers were abusing their posting rights.
I dont always have my mebership updated. I get the cheapest one when i have lots to sell then when im done it turns back into a free account again. I get the one month accounts.
KS isn't the only site on the net to sell but its the only one i've had to use. Everything i've posted has sold. I have a fauna classified account but i have yet to post there. I dont like to have my stuff posted all over the place. Ill pick one and stick with it if it works.
I have yet to have a negitive experiance with KS. I dont consider myself lucky because i do research when buying so i dont end up dealing with trash lieing scammers. And there are a few of them on KS. I dont consider myself a large breeder so i dont have a real website yet. In a little over a year when all my pets have grown up to breeding size WATCH OUT cause here i come. Then i wont need KS anymore hehe.