When posting a new idea or Message the "Message Tags" indicates that you should use spaces to separate tags when you click into the field, but when adding a tag to an existing post it indicates using a comma between the tags. When you use the space on a new post it appears to create one long tag and not separate them as it indicates.
I would suggest fixing this to display the correct message when posting a new message
Todd, thanks for bringing this to our attention. Multi-word tags are enabled for the entire site, which means that a comma should always be used as the tag separator. The "Use spaces between tags" message will be reported as a bug.
