Baconfry
Terrarian
Nowadays it seems like every other thread posted to Terraria Guides is a thread that belongs to in-game or technical support. Perhaps the name "Terraria Guides" isn't clear enough? There is some room for ambiguity, especially if English isn't your first language. These people are looking for someone to "guide" them after all. Renaming to "Player-made Terraria Guides" might make things less ambiguous.
Or instead of changing the name of the subforum, we could add a notice when they hit "post thread" that asks them to check a box to indicate that they understand the purpose of the subforum they're posting in. I know for a fact that this is possible with XenForo; not sure if TCF is any different. Guides are written infrequently enough that this wouldn't negatively affect people who write actual guides, I think.
Or instead of changing the name of the subforum, we could add a notice when they hit "post thread" that asks them to check a box to indicate that they understand the purpose of the subforum they're posting in. I know for a fact that this is possible with XenForo; not sure if TCF is any different. Guides are written infrequently enough that this wouldn't negatively affect people who write actual guides, I think.