I have to agree.
With the lack of details on a lot of items being sold. An "i'll take it pending questions" seems more than reasonable to me as a commitment to buy but wanting to clarify description etc.
If a blind "i'll take it" trumps the "I'll take it pending questions" then you'll end up with a lot of disgruntled buyers and incomplete transactions once the buyer discovered it wasn't really the item they thought it was.
Also it is only fair for a potential buyer to ask a couple of questions before handing over the $.
Just my 2 cents.