Drigg is far to simple in this regard. If it's going to be the Digg clone, it needs a more sophisticated promotion strategy. Vote count alone isn't sufficient.
Below are some example algarithms used by Reddit, StumbleUpon, Del.icio.us:
http://www.seomoz.org/blog/reddit-stumbleupon-delicious-and-hacker-news-...
Comments
Comment #1
mercmobily commentedHi,
1) This is a duplicate. Have a look at the queue
2) This is too generic. Specific requests are welcome' "make it behave like digg" is too broad.
Bye!
Merc.