You can always make a forum post with the game using the tools available in the toolbar (assuming that you have the PGN-file available for cut-n-paste)
PGN Viewer

Click on the tiny chessboard in the toolbar when you write a forum post...... Right above the area where you write the text
I asked about this some time ago and was told it was on the planned list of features. Was it ever implemented? Is there a PGN viewer yet?