Sharing with other users for free and reproducing for profit is two completely different concept. You might actually be breaking some law here I am not sure.
Regardless, if you think that reposting trailers are OK arguing that it is allowed here, then remember that flagging is also allow as an organic way for users to express displease to your content. So it is not censorship, it's just part of the game. As @enuser48 suggest, why don't you just write a small review for each trailer you post? I am sure whoever is reading it would appreciate it.
The fact that flagging is allowed doesn't support the assertion that it doesn't result in censorship. I write reviews and summary's on my main account @movietrailers has a specific theme and some people enjoy it. It serves a niche and most certainly doesn't deserve being auto spammed as a scam.
What harm do you think is being done?