what if they change wallets or keys?

I envision a system where the token covers the cost of your initial contribution, equivalent to the price of two DVDs, approximately $40. This not only funds the DVDs but also grants you access to our network. With the upfront cost accounted for, we can then set a more affordable monthly charge, leveraging the reduced overhead costs. Importantly, the reputation is tied to the token itself, not the wallet. So even if a user changes wallets, any fraudulent activity or complaints associated with the token will persist. After a set number of infractions or complaints, the token will be revoked. To regain access to the network, the user would need to purchase a new token.

I'm sure that Bullshitter Bob will be glad to know that the system believes his fake reports, and he'll enjoy the stolen DVDs too.