I would like to suggest that the help section should have a tutorial on putting a pgn viewer in a post - question or answer. I have mainly come from mathematics where the use of mathematical typesetting is a regular issue for new users. Well directed help gets new users on board.
A help tutorial could indicate site protocols and also provide links to some of the material already here on Meta.
It took quite a while to find out how to do get a chess board/game in a post (and pgn viewer wasn't the first search term which came to mind - my first question was how to include a chess board in a post).
This is my third attempt to get going on the site - and this has been my issue every time. I think I may have cracked it, but it wasn't obvious, and that may be putting other people off. Hence this suggestion.
Another thing I looked for as a newbie was a short-cut for adding a game board to a post (like the ones for adding a picture or a link). That could also be worth doing.