I've become interested recently in a market format based on comments with user testimonies. This format has a weakness: manipulation by alt accounts. To alleviate this problem I'd like to experiment with personal markets that track a user's credibility of being a unique, non-alt account.
Example of a market vulnerable to alt accounts:
/singer/will-10-people-in-the-comments-repo
Markets related to this issue:
/sixtynine/will-someone-be-awarded-a-trustwort
Get Ṁ200 play money