That was a question asked on my YouTube page by oron345. Well oron, here is my answer.
I upload my AMVs to Anime Music Videos.org as the original files that other people can download and use as their own because I want my fans to view my videos at full quality. I do not like the quality of anime videos on YouTube, and actually don't even like watching my own videos on YouTube. But its a convenient place for them to be.
However, I also do not like the fact that people steal my videos and use them as their own. I do not condone this at all and wish that anybody who has uploaded any of my works would take them down. This is however, not going to happen. As it has happened on many occasions, in many places, in many ways (uploading the video itself, uploading the video but changing the music, editing parts of my videos to different music, etc.).
Also, I have no copyrights on my videos, since I don't own the copyrights to the Anime and Music themselves, and cannot claim I own the video. So people stealing my videos is bound to happen regardless and there is nothing I can do about it. Even if I only put my videos on YouTube there are ways of stealing video from YouTube, and it would probably still happen.
In conclusion, I upload the full quality, easily snatchable versions of my videos because I want my fans to view them in their full original high quality format, and what they do with the file is their own business, but I severely dislike my work being taken and posted where no credit is given to me.
Also, I put title clips in my AMVs for a reason. It has my name in it, and shows it was truly "I" who made it.
Whoa that became quite a rant eh? I guess I answered your question ^^;