I think most do not make the right claims with Bricklink for them to take action
though. I see people with the worst feedback where they didn't send all the
parts and it only takes 3 people to make the right claim for them to be suspended.
At least that is what I thought.
If the seller refunds for the missing / damaged / wrong parts and shows proof
of it, then the NSS will be removed. However, the buyer might still leave negative
feedback. So the store can have a poor feedback score without being suspended.
I know but 3 NSS and you are suspended until it is resolved. Then you submit
proof and how long do you have to wait? One guy was waiting 3 weeks to reopen.
If they all did an NSS the bad stores would be gone more often.
I don't know how long you have to wait. I know we get reports here of people
waiting multiple weeks, but I don't know how common that is. Similarly I
don't know how many buyers go on to complete a NSS after they start one,
especially when there is evidence a parcel was delivered or money has been refunded.