> Um, what does this mean in English?
> 
> Assuming that the file is served from the same machine as a tracker and
> the torrent file, is this a problem?

No. If there's always someone seeding, this shouldn't ever be a
problem. With certain super-seed modes, that should reduce the amount
of traffic on the server.

In some settings (bt.etree.org, for example), there is no server to
always be seeding from, so the cloud is dependent on individuals who
have already downloaded the full torrent to stay connected. If all
seeders (a seeder being anyone who has the complete torrent)
disconnect, then leechers (those who don't already have the full
content) can only download the accumulated mass. In some cases, there
can be enough leechers who combined have the complete content, but
this is not always the case.

-- 
Chris
http://clabs.org