Hmm. I know what you mean, it can be annoying getting a retro-spective PM.
However some people simply aren't online every day (the idea seems alien to me too
), and as such some people will think it's normal enough to follow up 4-14+ day offers.
Plus for some members (and for certain domains, myself included), they may be happy to receive PMs from sellers after a short while asking them to buy the domain now.
So I think that it'd be hard to make this a specific rule, since different people act differently. I've seen some people put in their sig "My offers are valid for 24/48 hours only" - I guess this is a solution, or make sure to put that in the posts?
