You can shove the “payment method ownership” excuse up your ass, Poshmark. This little stunt right here is a blatant grab made to hoover up personal information that is both unnecessary and dangerous to consumers. What a scam!
For being a clothing platform, your site sucks. You know it’s bad when even eBay is better! (I hate eBay, too, but at least they have their shit together. If you want to see what I’m talking about, go search for your jeans size on both sites. You can’t specify inseam on PM, but you can on eBay!)
Edit: and I found the pants on eBay CHEAPER and with free shipping! I win. 🙂