I started working on a reputation system using blockchain. I wanted to take a stab at the whole trust/reputation space we've been seeing on pmsforsale and try to address it. I was considering using the tokens as a method to leave a review.

Here's a little mockup playing with the API, I created a new site called ikeo.io. I'll work on the formatting and aesthetics a little later, mainly wanted to see what the blockchain makes available.

In the beginning it will be free for review credits, but will move to paid, something like $5 for 10 tokens. This could be subsidized by the seller. Both Buyer and Seller can buy, but positives/negative can be left if the transaction is in the transaction history between the two wallets.

• use 1 Token to leave a positive review.
• use 2 Tokens to leave a negative review.

Negative reviews cost more to discourage the main people who would want to leave a negative, but if they are pissed off enough, they could. Tokens would be given from seller to buyer, where they would collect tokens. A high number of excess tokens means you are a seller or buyer who hasn't left reviews.

There will be a portal that has log in and you can 'save' your wallet address and put it to a username like a reddit handle. Wallets or id's must be unique. The wallet will gain reputation on the # tokens, $ transactions, whatever you choose. You can have 1 wallet purely for reputation and another for payment. The seller wallet must stay consistent to build a reputation.

This only works for ETH wallets for now. Let me know what you think about this. The reason to pay, is to avoid shill reviews, to avoid feedback abuse. Also, since the tokens are issued, we would be able to see which wallet is spamming and be able to freeze the asset. We would also be able to separate unique, high reputation, and account age from new, low rep, with multiple positive reviews to the same account.