I can't answer for Roman, but I've had some mixed results. I've got a couple good articles I submitted that got between 10 and 20 digs and got probably 50 hits from it. But, I've got one article that only had like 9 digs and I've gotten like 200 hits from it in the last month, and it wasn't even very good. Never made it to the front page though, or past 30 diggs until now.
Well the link I posted for my site was 28 days ago, I've gotten 9 signups for my site from digg. I think I would probably get my shared hosting suspended if I made the front page
http://digg.com/users/GlennWolsey/submitted Can you please Digg all of those 3? (If you like them of course)
dugg, plus i dugg any i missed earlier. anyone want to return favour? http://digg.com/technology/Is_Your_Website_Cool_
I forgot to mention that my site was Dugg a while back: http://digg.com/music/Largehearted_Boy,_MP3_Blog
I'm giving this a try for the first time: http://digg.com/security/VoIP_wiretapping,_Patriot_Act_expansion_and_the_history_of_wiretaps
Dugg both http://digg.com/apple/Apple.com_Store_Prices_Camera_At_$117,000_ I feel I have a good chance with this. Please Digg
Digging the above. One more from me: http://digg.com/security/Study:_Euro_IT_directors_say_VoIP_insecure;_VoIP_hacking_scheme_uncovered