Can you go back to the XF default style? The one you have now that resembles vb in having all that info under the user name in the postbit is creating posts with huge amounts of wasted space. Plus all that info is on the member card anyway. It would just clean things up and make it neater.
I don't mean the whole theme, just the postbit. The postbit default of XF is much cleaner. Is it not part of this theme? Did the theme designer make postbit edits? If so, those might get lost in an upgrade, fair warning.