I've seen this "thing" happening a lot with some DPers. They come, make an interesting [WTB] Thread and they simply dissapear after that... maybe hours, maybe days and even for weeks. I mean... don't make a thread where you want to buy something if you aren't planning to come back and check it!
I think alot of it is to do with our 'Impuse Buying Nature' They have a Brain Fart and say 'I wanna Buy this' then a few hours later they decide they dont!! We all do this throughout life. Be spontanious.....
Yeah! I have seen many threads with prospective buyers settling for a rate and then lowering it to the abysmal unprofitable limits and later responding through PM that they don't have sufficient amount in the paypal and just disappear
Duh! Its called linkbait. Someone makes a "WTB Sig Links" post. Every man and his dog visit the thread. he'll get about 600 clicks on his sig links. Free marketing
I started to realise in February when around 4 of every 5 sig link buyers never actually bought any links or replied to the thread.
I do about the oppisite I guess. I see something like that & either reply or send a PM, then completely forget about it unless I get a response.