I was about to buy off of http://www.aliexpress.com/ but then after I placed my order, in order to actually complete my order and pay for it, I was redirected to Securesuite.net, which asked me for the last digits of my social security number.
Feeling unsafe, I didn't complete my order because I didn't just want to give out my SSN.
no one needs to know your social security number to sell you something except maybe a gun store