Its Full Members and higher, it does not stop more trusted members to do it, you could do it too if you think its worth your time. Its a good idea so maybe ill do that after the first 20 reviews.
its just that there are a lot of full member accounts that are farmed and sold cheap, and the market value of those rank accounts can range below the 0.1
BTC mark, which would give people a lot of incentive to abuse this promotion for the 0.1
BTC bonus. i would agree to restrict this promotion to either a higher rank of members or to trusted members with solid green trust only.