I think when you see a tag within Hubski, you should be able to scroll over it and follow it right then and there. On reddit with RES there was that option so I just think it would be useful.
We could possibly have the number of followers and stuff as well.
Also, as I tried to write the tag for this post (#suggestions) there wasn't a dropdown list to choose a tag. I know these things would very closely resemble reddit, but it they definitely there because they were useful.