xieweiking

Adds Wechat pay and Alipay QRCode upload fields to user profiles if the current user has media permissions, adds PayPal link field to user profiles too. Simple and lite.
Edit a user profile, and scroll down to the new “Rewards” fields.
User’s rewards content will display at the end of its articles.
Stores QRCodes in the “uploads” folder where all of your other media is kept.
若用户有上传多媒体内容的权限，则在用户个人资料页面添加微信支付、支付宝的收款二维码上传字段，同时添加PayPal链接字段到用户个人资料页面。十分简洁的一款插件。
编辑一个用户的个人资料，滚动到新添加的“打赏”字段你就可以看到。
用户的打赏内容将会在它的文章的结尾处显示。
二维码图片将会被保存在“uploads”文件夹，也就是用来保存其他多媒体内容的目录。

WP User Rewards

Pay tribute to simple-local-avatars and donate-with-qrcode

Great and simple

Adds user reward/donate fields to user profiles, including Wechat pay QRCode, Alipay QRCode, and PayPal link. 在用户个人资料页面添加打赏设置，包括微信收款二维码、支付宝收款二维码和PayP …

Techspawn

BuddyBadges turns your WordPress site into an achievement & badge system. According to ‘Post’ & ‘Comment’ your users can earn digital badges. Admin can easily defined the badges according to points. BuddyBadges is extremely powerful and infinitely extensible.Given are some of the features of ‘BuddyBadges’ plugin.
Many ways to define achievements and give badges
<ol>
<li>You can give badges to only posts.</li>
<li>You can give badges to only comments.</li>
<li>You can give badges to posts and comments.</li>
</ol>
Buddybadge guide
1) To display all the default badges :- a. To display all badges on use a [displayAllBadgeUser] short-code. 
 b. Related to post the user and badges is display. c. This code is apply only for post.
2) To display all the badges related to post and comment a. To display all badges on use a [displayPostCommentBadge] short-code. 
 b. This is apply only for post and comment.
3) To display badges related to post a.To show only post related badges use a short-code [displayAllBadgeUser bbtype=’post’]. 
 b.This code display all the user regarding to post count. c.if any user can insert most of post related to other user then that user give a badge.
4) To display particular user badges related to post 
 a.To show only particular user related post badges use a short-code [displayAllBadgeUser bbuserid=’User name’ bbtype=’post’]. 
 b.If you display only a particular user badge just insert a name on badge and get a result.
5) To display badges related to comment a.To show only comment related badges use a short-code [displayAllBadgeUser bbtype=’comment’]. 
 b.This code display all the user regarding to comment.
6) To display particular user badges related to comment a.To show only particular user related comment badges use a short-code [displayAllBadgeUser bbuserid=’User name’ bbtype=’comment’]. 
 b.This code display only particular user related comment badge.
7) To display badges related to post and comment a.To show both post and comment related badges use a short-code [displayPostCommentBadge bbcommentlimit=’1′]. 
 b.This code display all the user regarding to post and comment.
8) To display badges related to post and comment a.To show only particular user related post and comment badges use a short-code [displayPostCommentBadge bbuserid=’user name’ bbcommentlimit=’1′]. 
 b.This code display only particular user related post and comment badge. 
 c.Here ‘bbcommentlimit’ is used for dividing total comment count to bbcommentlimit and round number is used for deciding for position for count. if you increate a ‘bbcommentlimit’ then the comment count decrease

buddybadges

Buddybadges turn your side into achievement and badging system. Easily create badges according to its given point.

WP User Rewards vs buddybadges