There is also the factor that whenever an official torrent is available, people _will_ attempt (and succeed) in creating fakes, just to countradict it, thus increasing the number of fakes.
And the users will not know that those are fake. At least most user will not, as the minority of others indeed will compare different torrents before downloading. But remember that Plus! is used mostly by people who only know how to turn on their computer so to speak, they will not know how to search for proper official stuff.
You need to look at the whole picture, not at "bittorrent is cool because company X provides his big product Y on it"
But whatever guys,
I only say what I experienced for more then the last year on various networks and from what I know from other officaly distributed torrent packages. I know how 'fakers' think and how they find it cool to make fakes and I know how easy it is to spread something corrupted (I've done the same in the past).
Do as you please, but if I find an increasing amount of fake stuff (other and more then the useual) I know what the cause was
...