Yup.

Plan for the Grapevine: I attest I trust you (or don’t trust) in some context. If you want to sell your attestations for a few sats, you can do it, and my software will pay you automatically if my Grapevine tells me you’re worth it. This will incentivize you to provide attestations that are USEFUL; otherwise my Grapevine will tell me to stop listening to what you say. So if you follow all your follows indiscriminately including the scammers, my Grapevine will tell me your follows list is tainted and worthless so ignore it. 

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