That ^ is an interesting exchange. Not sure how much reading between the lines is necessary to discern from that first quote that some people expect stuff to be mailed
right ****ing now!
Personally, I mail stuff as soon as I reasonably can, which might be a couple days...in which case I will tell the buyer right away. Should I treat the buyer as I expect to be treated? I do!
Regarding whether or not a seller is responsible for explaining the details of a reticle, or some other minutia related to the item being sold: Responsible? No. Obligated? No. But doing so is making it easier for the buyer to make the buying decision, which can only help you as a seller. How hard is it to add a bit of info that a buyer would find useful?
There are obscure and mysterious ads that make me wonder if there is another type of CGN membership, one which charges you per word for posting an EE ad. You read these things and sometimes you don't have any idea what the thing even is. "Skankmeyer 450X, good shape, $300 firm" Guys who post crap like that think they are looking for "serious" buyers, which they apparently think means guys who are deep into the Skankmeyer community and know exactly what the 450X model can do. Casual buyers or impulse buyers need not apply.
News flash: I buy stuff on impulse all the time. My favourite EE forum for impulse buys is the Knife section, which also happens to be where a lot of the Skankmeyer experts also hang out. I probably miss out on a lot of stuff that I would have bought if the seller bothered to tell me what the GD thing was. I may not be seriously looking for a Skankmeyer 450X...but I will quite possibly buy yours if you show it to me and/or describe it a bit.