Allow admins to remove votes on posts. This is for fixing vote abuse. Votes can be removed by going to the vote list on the /post_votes page, or by clicking on a post's score, then using the "Remove" option in the "..." dropdown menu next to the vote. Votes are soft-deleted - they're marked as deleted in the database, but not fully deleted. Removed votes are only visible to admins, not to regular users. When a vote is removed by an admin, it leaves a mod action. Technically it's possible to undelete votes, but there's no UI for it.
Components
Components are used to encapsulate common UI widgets used throughout the site. This includes things like comments, tag lists, post thumbnails, paginators, and other things used repeatedly throughout the site. Components encapsulate a widget's HTML, CSS, and Javascript together so that all the code for a component is in a single place.
This uses the ViewComponent library.
Components are similar in concept to React components.