1) Walkthroughs are absolutely not the only type of guide that GameFAQs houses. It has never been only walkthroughs, even from its very early beginnings. The easiest example of this is Fighting games, which will have in-depth strategy and gameplay guides made specifically for each player.
2) GameFAQs has had a forum for ages, which also has this as the primary topic of discussion. It was in fact the first forum that I ever participated in as a young child, along with some #IRC channels.
> I'm unaware of twitch streamers or youtubers who primarily teach how to play a game. Can you point out examples of those? I'm really curious.
You're being facetious. Do you not know how to Google as well? I'm really serious. :edit:In the offchance you aren't feigning ignorance[0]