1. We hope to mitigate this by implementing a review and rating system with manual intervention when needed.
In addition to these things, I think it'd be nice to also require sellers to provide a picture that clearly shows the item together with a handwritten note containing their name, the date, and the latest block height number
["this" is how we do it on this forum].
2. Can you please elaborate on these issues?
Sure, I was referring to simplifying the manner in which the tracking and freezing of an assigned address
[e.g. one that belongs to a scammer] could be done, in order to stop them from withdrawing their funds
[assuming that everything would be on-chain].
BTW, multi-posting is against forum rules
[you can respond to multiple users by clicking the "insert quote" button at the top right corner of each post (when you're in the "post reply" field)].