natekinkead

This simple yet powerful plugin integrates with the bbPress forum plugin to add a new feature which allows users or visitors to vote up or down on topics and replies. Each topic and reply has a total score with an up arrow and a down arrow.
This plugin uses AJAX to save the vote on-the-fly without refreshing the page.
It’s also AMP compatible!
Visitors can only vote once on each topic or reply.
Features Included: 
* Show or hide (and customize) labels for up and down 
* Disable voting on topics or replies globally 
* Disable voting on specific forums 
* View-only score on closed topics 
* Sort topics and replies by voting scores 
* Admin bypass 
* GamiPress integration
Pro Features Available: 
* Historical weighted score visualization 
* Accepted answers 
* “Who voted” avatars 
* Sort dropdown 
* Sort on weighted score 
* Sort on trending score 
* Trending topics widget 
* Schema for Q&A rich snippets 
* Voting email notification to author 
* Mark topics or replies with poor scores as spam
Purchase bbPress Voting Pro at <a href="https://wpforthewin.com/product/bbpress-voting-pro/" rel="nofollow ugc">WP For The Win</a>!

bbPress Voting

I hope you enjoy this plugin!  If you have any questions, please post a topic in the for support forum.

Couldn't believe there was nothing out there like this!

Although I wish it had some options for placement. Not sure I like it above the author avatar.

Pretty cool

Let visitors vote up and down on bbPress topics and replies just like Reddit or Stack Overflow!

ernestortiz

An iconic rating system. You can select in which type of post the review appears, where in a DIV, the number and look of the review stars (or whatever icon from font awesome) as well as its behaviour (some CSS3 transformation actions and a tooltip), etc.
<h3>Donations</h3>
If you want to help me in writing more code or better poetry, please invite me to a beer (or coffee, maybe) by sending your thanks to my PayPal account (ernestortizcu at yahoo.es). Thanks in advance.

Iconic Rating

Review or rating any post type, with stars or other awesome icons, adding some effects on hover (and tooltips).

bbPress Voting vs Iconic Rating