The Review System should be used for actual, constructive reviews, and not just as a mechanism for verifications. Sellers cannot require buyers to leave a certain type of review in order to get support. We prefer that sellers can use the question system for verification at this time, per this post.
Reviews that only contain Discord verification should be posted in the questions section until an official verification system is implemented. Once the user is verified, the seller can report the question and let the Marketplace team know it is resolved and we will remove it.
If our community reports abuse of the system, we’ll review and moderate as appropriate.