Adds many enhancemnts to the GOG.com website
That's something I'd like as well. Unfortunately there's no reliable way for the script to determine where the appropriate discussion board is, so the only thing we can do is vote for it on the community wishlist ( https://www.gog.com/wishlist/site/link_to_relative_game_subforum_in_the_store_gamecard_page ) and maybe send a message to GOG support asking them to consider it.
Community Discussions
It'd be really nice to have a link injected on each games page to the corresponding community discussion board, and maybe even have a link (or list of for boards that have more than one game to which they are dedicated) at the top of said boards back to the store page.