Question: There have been a few ID questions lately that boil down to a youtube link or an image. To me, these aren't of high enough quality to keep on the site. Examples:

* [what spider based movie is this scene from](https://movies.stackexchange.com/questions/10611/what-spider-based-movie-is-this-scene-from)
* [id this bollywood movie](https://movies.stackexchange.com/questions/10584/can-anyone-identify-this-bollywood-movie-circa-1980s)
* [which episode of lost girl is this gif from](https://movies.stackexchange.com/questions/7959/which-episode-is-the-tick-tick-boom-image-captured-from)(closed)

Answer: 
I think for movies an ID question with a screenshot would be acceptable, since the new google image allows pasting an image in for a search, movies.SE could actually become the site where people come who are looking for the same answer. 

TV Shows are actually a little tougher because if it's just a screenshot with no actors/actresses then it could be impossible to identify without any other information. The same could go for movies but since movies are generally limited, as opposed to a particular 'TV Show' and not limited to a season-episode specification. Example:

`Good Question`

Can anyone tell me the name of this computer movie that came out in the 90s?

![Unknown Movie](https://i.stack.imgur.com/TlIVs.jpg)

`Good Question`

Hey what episode of ***Fringe*** is this from?

![Fringe Screenshot](https://i.stack.imgur.com/t5Rya.jpg)

`Bad Question`

Hey what TV Show is this from?

![Random Screencap](https://i.stack.imgur.com/IlOgX.jpg)

Of course this is my own opinion, but at least the first two could be tagged, while the 3rd is too vague because it contains either 1)No readily identifiable person with which to narrow down the question and/or tag or 2)Nothing specific at all, just a weird background or some generic object that the OP thought was kewl. Just my take on it.
So to reiterate my comment into an answer. I believe that the ultimate problem with these sort of questions is that they exist in a vacuum. The only information that the asker has is the picture, which to me is worse than relying on their memory because they can come up with more details from their memory than if they **only** have a photo or video.