Alot of visitors on my forum, see my referrers

[wdc]

Him
on HQ Scenes - Rapidshare, Hotfile, Megaupload, FileServe, FileSonic, MediaFire Warez Forum forum is coming alot of visitors from russia, but they dont have any referrer..

See the statistics of visitors:
eXTReMe Tracking

There is alot of russian visits:

broadband.corbina.ru
broadband.corbina.ru
broadband.corbina.ru

from various IPs. But they have no referrer... does it mean these are direct forum posters?

 

[LeetHost]

Empty referrers means that they have opened your site directly. For instance, if I directly enter example.com in my browser, the referrer would be empty. It does not necessary mean that those are direct forum posters. They can just be visitors returning back to your site.

 

[mikho]

Or they can come from a link that removes the refferrer