Rapid Share, Mega Upload and other sites like that will only have the link available for a limited time. After that, it expires. Whereas the folcvideo site was especially created for Folcs to upload their videos to and never have the links expire.
For people like me, who don't always have time to watch the video when it comes out, it's a loss if the video was uploaded to shared sites.
<AKComm member mode on> Also, when the time for the Alt-Kerths comes around again, it's a lot of work to gather all the links. Especially if there are files that are no longer linked to. And we do like everyone to have a fair chance in winning an AK. <AKComm member mode off>
But it's your choice really. So whatever works best for you. Just have a look around.
Saskia