We're using likes & reposts to build the spatianostra relay feed. You repost, I like. Boom, it's in the feed for anyone browsing it to see. Jumble has it set as one of the default feeds for new users to browse. If enough people in the voting pool like any one note, it gets displayed in the feed. The like bots will never get into the voting pool because they themselves don't create anything worth enough likes to gain them voting power ot contribution rights. The greatest part is no one owns or controls the feed or the voting process. Anyone with more voting weight now, such as you & I, are mere stewards of the space. Eventually, enough people with similar interests will be driving the feed with their likes.

As you know, I'm also very pro-zap. This is just an example of what's possible with different metrics. I particularly think this one has potential because most new users aren't going to be zapping right away, so it's discovery and familiarity in one feed.