User Activity

Some of my buyers are not leaving feedbacks - Is it ethical to solicit feedbacks/ what are the pros & cons?
A buyer won a bid on my bulky product that was for pick-up only coz of its size, After 2 days without payment I sent buyer a soft reminder about payment and collection of the product.3rd day, buyer emailed saying they have no paypal account and will ...
I am just trying to sell second hand clothes and accessories, not so much but more than 50 items, this translates to my personal info being distributed to 50 strangers ( assuming I sell them all but they are almost free, the prices unbelievable) Is t...