There is no feature in standard Q2A.
Reference information:
This is not point. And it is not daily bonus. But, it seems if user visits site in specific days, user gets badges in badge plugin. This plugin should have a hint for you. Your hope may be realized by remodeling this plugin.
http://www.question2answer.org/addons.php Badges Plugin
However, this plugin seems to have some issues. I revised some issues of this plugin and equipped ASKIVE after having been improved. The lower image is the badge plugin options to be related in this topic.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.