[Frosty]

That would require some core changes, which I wouldn't do on my forum, neither I would suggest such thing, as it could f*ck up the reputation system. But the thing you could do is to install the "Post Thank You" hack, and there's this thing in its options to receive +1 reputation point when someone clicks "Thanks", and you can disable the statistics to be shown in the postbit, same as the bar where it says that user received "Thanks" for that post. You can also replace the image "Thanks" with any image you wish..