Posting a link with no discussion in the text of the post is a driveby. A few comments at the beginning would probably have kept it alive. I'm betting it could be re-posted properly and not locked.
Have to agree. The content of the video is not enough. Even a short paragraph referring to it's content and it's purpose would have sufficed.
It's not personal when staff closes a thread, they are doing a job within a set of rules.
Keep in mind their time is donated to the forums and it's members, so it is precious. If they went through every video to see if it were interesting enough to let it ride they would be forced to give more time then we should ask of them.
Also if they did see one as interesting when another one wouldn't it would create chaos therefore the reason for the simple rule.