Dear discount_mela !
I fully agree with you and have suggested ebay several times to put some guarantee / reserve money kind of thing to qualify for bidding.
Last year, I put some of my items regularily on auction and every time a reasonable price was offered by winner but hardly any one paid.
The process continued for 5-6 months continuously and I had to raise UPI ( unpaid Item dispute ) for evary such unpaid auction sale.
And you will be surprised by knowing the result !
Ebay put restriction on my account and all payment methods except paisapay was restricted for my account.
Probably ebay had a doubt that I am accepting offline payment and falsely raising UPI disputes.
Rather then doing something positive to control fraud buyers, they tried to reign me.........
FYI, let I share, that I am selling since baazee.com time and the management at baazee.com, had better buyer seller plans then ebay people.