I've been on this forum for like 18 months... I've never had or seen others having an issue with buying/selling items.. other than potential buyers wasting their time, myself and many others included as timewasters....and as far as I'm aware nothing has changed with the methods (other than inclusion of PayPal fees?)
Looking at some of your profiles, many of the well known names have joined over a decade ago.. perhaps you guys are more versed in making the decisions than us new lot.
@knowledge=gain I think you need to understand that the forum is free for most, if you're a buyer you don't have to pay to join, you also have full control over whether to part with your money or not. But equally you must understand the loose and flexibility of the forum, if you really do start dictating or wanting various rules to be enforced, you're going to tie the forum into potentially legal conundrums. There really is no need.
I'm sorry, but your questions regarding warranty did seem very silly to me. I can understand it being desirable, but wanting transferable warranty on a couple knives you'd be parting £30 for and letting that reason be the reason you missed out on the sale leaves the responsibility solely with yourself. If I was you'd I'd have weighed up the product: 2 knives, £30, good condition, (near new condition?), .. if they fit, then just cough up the cash, if you find warranty is there then big bonus, if not then you've got 2 knives for £30... seems reasonable to me.. I think to throw a spanner in the works and really drive for wholesale changes over what I personally deem to be your mistake/your problem (and note, I did similar less than a week ago!) is too much to swallow... I think if both you and I were seasoned members, or were a fair representation of a common problem, then it might be worth considering, but I'm letting my years mount up before I consider stamping my feet... about that blooming knife I missed out on the other week!! Curses... haha