Is there any website out there that takes PGN input and generates and hosts board positions (To show as image in the question or answer), till the time we get something like this done on this website itself, we can at least borrow?
Found one, after googling for quite a while!
Here is the diagram I just generated at the URL http://www.chessvideos.tv/bimg/3etzqdenimww8.png
Anand vs Gelfand Game 1 Grunfeld Defence, WCC 2012
The website to generate the diagram is http://www.chessvideos.tv/genboard.php
Found another one, this one is far better, it generates Animated gifs
Anand vs Gelfand Game 2 Queen's Gambit Declined Semi-Slav, WCC 2012
This can be done here http://www.caissa.com/chess-tools/pgn-editor.php
There is a very nice web service called Chess Imager that generates a board diagram from a FEN string included in the URL and you can even change the color of the squares using RGB values that you encode as well. I have used this several times in my posts on this forum.
You just build the URL, which is not difficult, and then bast it in the image (from web) dialog box. The only think I do not like about it is that it does not included a method of identifying the side to move nor does it have an indication of which side is to move. But there may be other options for that that I am unaware of.
It would probably be easier to Google FEN to chess board image rather than PGN.
Something I put together myself: Diagram maker You can have source upon request. It's written in Jquery and php. It supports drag-n-drop and generates png and FEN
I believe r/chess on reddit does something like this.