You need to add some new subcategories to the Boards (and maybe to merge some of the existent ones)
Context: On EUW forum, the Community Coordinator of EUW Draggles did a post to explain the introduction of the Boards Beta forum for EUW (and EUNE, with the merge of English speaking forums), and he mentioned as one of the reasons that should stimulate the userbase to make the transition from the old "traditional forum" format to the new Boards/Reddit style format the argument that one of the issue that Boards format combat is the fact to have everything funneled to one big subforum, the General Discussion one, which make more difficult for people to get their arguments listened from the right audience at Riot and by the other users
Following the NA Boards, though, I see that most of the threads are posted just in 2 or 3 subforums like Gampelay & Balance, Miscellaneous and few else, while other remains used little and at times overlap, like Fantacy LCS and Esports, for example
I think that to make the subforum Boards style to work properly, new categories should be inserted to properly distribute the load of the main subforums to other ones and make everything more clear. Here I copy-paste the post i did on EUW forum to explain my thought, let me know if this can help you
Well, Draggles, Na Boards experience tell us that this is just not true. The fact that a lot of subcategories are lacking like, for example, a cetegory for "Item suggestions" or "Champ rework suggestions" , end up with people posting mainly on 2-3 main subcategories like Gampelay & Balance, Miscellanous and General Discussion
The subcategories concept can be effective only if you get all the proper subcategories to the Boards style format, otherwise you as Riot would fail in achieve this goal
I hope it can help as feedback :D