Holy crap, this s**t is disturbing.
Yes, it's most likely for seeding. You'd think they should rather spend their time sending this stuff to THE PEOPLE WHO CREATE THE TORRENTS, not the people who download them.
Besides, torrents are good for business and actually improve the sales of most of the media that's downloaded. Just look at Game of Thrones. They purposefully withheld the BluRay releases until after the complete seasons had been aired which meant that people downloaded them since they couldn't buy them. This ended being the best advertising for them and they could sell the rights to other broadcasters for massive money. You don't see the producers of GoT complaining about it, since they most likely did it like this on purpose. Clever buggers.
The same goes for most music, especially the really good stuff. You listen to their stuff from downloads and then buy the albums either for better quality, the joy of ownership or to directly support the artist.
Same goes for GOOD movies and series. If it's good, you'll buy the BluRay. If it's not, it doesn't deserve the sales in the first place.
As an aside, here in Finland we have an interesting thing called "media tax". When we buy blank media (CD-R, DVD-R, etc), we pay a premium on it since it could possibly be used for storing copies of copyrighted media. This "tax" is then paid forward to the big media companies (Sony BMG, etc..)
On top of that the same big media groups are pushing for making torrenting illegal for the same reasons, that it COULD be used for spreading copied media.
Meanwhile in Russia, the government is offering bouties of more than 100,000$ for anyone who can identify users of Tor browsers and censorship of the internet is rising. Doesn't look good. When you have state sponsored sensorship of media, propoganda rules the airwaves. I know, I used to live in apartheid South Africa.
This s**t has got to stop.