In my line of thinking it would only apply to your own feed, so the viewer would have choice of what they wanted to see.
If I can make your post less or more visible to *other* people then it's doomed to be a censored platform. If all it takes is money, hello oligarchy!
Remember, memo.cash is one client of the memo protocol on the blockchain. The protocol needs dislikes. How this or another client uses that info is up to the creators and users.
