Posts can now be tagged when they are published with the WP Discourse plugin. To tag a post, click on the Discourse meta box Advanced Options link to expand the meta box. Add tags to the Tag input, either one at a time, or as a comma separated list.
Any spaces in tag names will be converted to hyphens. The maximum number of tags is set by the ‘Maximum Number of Tags’ option found on the Publishing Settings tab. The maximum number of tags will default to 5 if the setting is left empty. Tags that are not allowed on Discourse due to Site Setting or category restrictions will be omitted when the post is published to Discourse.