The site itself is entirely legal; the user-uploaded content, on the other hand, is very often infringing.
Saying something has a "copyright issue" is usually a nice, slightly oblique way of saying "copyright infringement." For example, if a YouTube video is taken down because of copyright issues, it means the rightsholder of some portion of it has asserted that the use is infringing.
No but it would be a violation of the respective trademarks Facebook & Twitter have on their logos.
Strikes may be removed after 6 months, as long as no other infringing activity happens during that time.
Individual words cannot be protected by copyright, and Bethesda has not registered it as a trademark. Keep in mind that Bethesda has registered many words, phrases, and logos related to Fallout as trademarks, so your intended use may be infringing in other ways.
Unless the songs from iTunes are you own work or you own the copyrights you will not be allowed to put them on YouTube. The advice from YouTube says: Posting copyright-infringing content can lead to the termination of your account, and possibly monetary damages if a copyright owner decides to take legal action (this is serious-you can get sued!).
While rightsholders might want to stop all infringement everywhere, they know it's not possible or even reasonable. They know they can't go into everyone's house and find their ripped DVDs. They know they won't find every photocopy or every mix tape. But YouTube is a great one-stop-shop for rightsholders to see who's infringing on their rights. With one search, they can find infringing materials around the world. And while they still know they can't sue everybody, they now have this one big target: if they can stop YouTube, they reason, they can stop tons of infringing activities! Because while YouTube might not be infringing itself, it's enabling others. So YouTube has to emphasize copyright compliance among its users, lest it be sued out of existence.
The difference is in the user's intent. Willful infringement means the user planned and intended to violate copyright. Generally a person watching an infringing video on YouTube would be infringing, but a person systematically ripping and uploading thousands of DVDs to a file sharing service would be willfully infringing.
Yes, YouTube could potentially be held liable for pirated content uploaded to its platform under certain circumstances, as they have a responsibility to enforce copyright laws and remove infringing material.
No, the only way to do that is to use the internet browser to view copyright infringing videos on YouTube or to do unauthorized modifications to your DSi that will probably void your warranty.
YouTube and copyright owners decide what content appears on YouTube. YouTube decides based on the community guidelines while copyright owners decide based on copyright laws.
If you manage to find a full version of the movie on YouTube, then you can play the video to watch the movie. However, beause it is a copyrighted material, I would imagine that it would not last long on YouTube because the owner of any part of the video, whether it be audio or visual parts of the movie, will be able to send a takedown notice alerting YouTube of copyright infringement. If a video is infringing someone's copyright and somebody claims it to be their property, then the video can be taken down.