Same reason as every other site. They want it to keep working and not be a dull site.
Reply: but YouTube was already good enough now the really bad updates are ruining everything
Because of site maintenance or they are updating servers
It depends. If the software you we're updating is from a trusted site. Then it is safe to update your software/computer.
Google keeps updating the look of Gmail. It is because of the updating needs of the users. They try to keep updating with the latest technologies.
yes.. it creates bandwidth, you can keep the videos by downloading them off a site though if their really that good
You can't open the site sometimes if the site is temporarily down or is updating.
Your is probably experiencing problems while processing the video. Try updating your flash player.
Keep updating the browser.
There is no such thing as a YouTube site manager. It is a fake term used by trolls on youtube who try to intimidate other people.
You can update a HTML site by updating it's content. Changing HTML will change the content of page.
Tweeting.
Because they maybe updating the site , changing name , just wait and you will see it will be fine !
It is just as easy to get to the youtube web-site as it is to get to the wiki.answers web-site. Anyone with a computer can do it.