There are a lot of tags already, and thanks for that ^w^, but here are some more tag ideas that I would personally like.
Tags for crafts:
VTOL, European Union, International, South American, Weaponized, Unspecified (new concept), Other Games (from another game, like KSP or Portal 2)
Tags for forums:
Community project (to discuss a new project made by more than 1 player), Other game (to discuss a topic about another game), Emotional help (for people that need help due to depression, a problem they got ETC)
Some may not be worth it to be placed due to some mods having problems moderating the SR2 site, especially on forums, but these are my ideas, any suggestion is welcome!