Thanks David,
Yeah the system is probably fair, although it is far from ideal from a buyers point of view.
Ideally if you heard nothing for 14 days (as you say the seller has the choice to simply "ignore') the offer should be deemed void through disinterest on the sellers behalf.
If the seller declines an offer then the intial offer should become void instantly so prospective buyers don't have their funds tied up in offers that "may" come to fruition in the eleventh hour.
Thirty days seems a bit excessive.
I have 4 recent offers still "live" according to Netfleet policy. Two of them haven't even contacted me after a fortnight and the other two I had replies almost instantly though I am not prepared to pay what they seek, so ideally from a buyers point of view, it would be nice to know I can at least go shopping for others using these funds.
In my opinion, any formula should be geared towards the buyer buying domains and not impeded by policy or domainers who can't be arsed replying to offers.
Thanks