I've come back to eBay after a bit of a break. In 6 months I have sold 12 items. During that time...
I didn't receive payment on one item and had to raise a case with eBay.
I had a bit of an argy bargy with a buyer over the colour of a skirt which they insisted should have been blue when description said brown. 
I received inappropriate questions from one potential buyer (pretending to be a teenage boy).
I haven't received payment for a second item and have a case raised with eBay.
and finally...
A buyer has asked if I will sell them a cash on collection item. I listed it yesterday and they are offering me the starting price to come and collect it today. They have zero feedback despite being on eBay since 2008. I have just blocked them.
In fact, I have now blocked five buyers in as many weeks.
Is this normal for eBay now?