You posted just a little while ago on another thread

How as a buyer are you being ripped off?

Buyers have all the tools and all the power

Are you checking the seller's feedback before you buy?

The estimated delivery date is shown before you buy, so you know before buying if it is going to take weeks to arrive

conversions rates have always differed from place to place

You don't need to be a 'brain'

You do need to stop playing the victim

The things you are complaining about here are easily avoided 

If you have been an eBay member for years, you should know the most basic things by now

And if not, time to read up

Check feedback before buying

Look at the estimated delivery dates before buying

Open the appropriate dispute when needed and follow through with it

Leave neg feedback where it is deserved 

Don't allow yourself to be ripped off on eBay

YOU have control