I think it is fine, since likes on twitter have been public. People just need to change their habits on upvoting and downvoting that they got used to when they were on reddit. So need to adjust to how people would go and downvote whatever comment they disliked and move on. Now that stuff is public, so maybe it can help against brigading?
That is valid. It’s part of why I wanted to make people know about how upvoting and downvoting works so they can be more mindful about how they use it.