Tags can be enabled in admin/general section.
Adding tags using hashtags can be achieved by means of this plugin: https://github.com/pupi1985/q2a-hashtagger
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.