Here's a possible point of interest concerning Topic tags...
I note that several folks are using the Topic Tags which is a very good thing.
When clicking on a tag anywhere in the forum other topics with that same tag will be brought forward.
Its a useful way to categorize and retrieve information.
This does beg the question however about the usefulness of one of a kind unique tags that are more than likely to only apply to that one instance of using said tag.
It may be that folks are using the tags in a similar way as the old subtitles, which have gone away.
But note that as those will likely be unique to only that one post or topic, it isn't a particularly good use of tags.
Tagging can (at least theoretically) help others find other information in the forum related to your tags.