Reply To: Tag
That should be possible, yes.
There are a few ways you could go about this but the easiest is probably to make topic tags available to regular blog posts (that way, both can share the same taxonomy and you probably won’t need to worry about modifying the bbPress UI).
If you really need to, you could go a step further and a) remove ‘regular tags’ from blog posts and b) rename topic tags so they simply read as ‘tags’. This would result in you having one type of tag everywhere.
Bear in mind however that if you already have a bunch of existing topic and regular tags you would need to do some migration work unless you are prepared to lose one set.
