If you are referring to members that hand-make their own products, then yes ... some do. You'd have to contact that particular member, to find out if & how much.
If you are referring to the commercial brand sponsors, then no ... they don't offer site members a discount. If the ad links, provided on the site, are used to order their products ... the site owner gets financial support, which is used for maintenance & upgrade costs.
Depending on what it is that you are wanting to purchase, you might want to look thru the Crappie Business Directory to see if it's available from our sponsoring members (left corner of page). Or, click on the banner links of the commercial brands, that appear in the right hand corner of the page (note: they alternate with the changing of the page). Or, put a WTB (want to buy) post on the Swap Meet/Classified Ads forum ... explaining what, specifically, it is you're looking to purchase.
... cp