Hi boing, I buy and sell on eBay and I am always up front with my postage costs, I rarely sell anything with free postage these days. If I have charged say £4 for postage and when I mail it, it's cost a lot less, I will make a refund, this keeps customers happier than outrageous postage & packing costs. I haven't spotted one like you describe with a free postage advertised then stuff in the text about costs, that's poor practice - but on items with a fixed postal ceiling eg books, I will put in the text that "the book weighs 600g unwrapped and the additional cost of postage is reflected in the starting price." I think all you can do is leave weak feedback ratings for people whose postage and packing rates aren't up to scratch - I must admit I tend to look at the scores before I bid for something, particularly if a number of sellers are offering the same thing. I never used the search facility you mention re costs because I've found that lowest price doesn't always mean best value on delivery etc. This is my viewpoint anyway!