ESO is huge. It's just massive. And there's very little way for players to access information about the game's mechanics internally within the game. A lot of the most vital information about game mechanics is out there in the community (if it's there at all - I still can't seem to pin down the precise mechanics of siege DoTs, just loads of wild community claims and speculation).

What I'm proposing is a pretty massive undertaking, but it would also be pretty game-changing if newer players had easy, up-to-date access to an official resource that explained things like how each status effect actually works. Global cooldowns and weaving attacks. The fact that repairs in Cyrodiil scale off of your Healing Done stat. What effects the mostly mystified enemy attacks on death recap actually have (ie, does this enemy attack I searched drain my mag, apply a heal absorb, etc). The fact that learning full motifs increases drop rates for master writs (and just how that whole system works in general). Etc, etc, etc.

A huge range of mechanics in the game are heavily obscured and hard to pin down without lots of community support from end-game players, and I know that certainly slowed my own development a great deal. I basically had to just meet the right people because the game wasn't gonna help me, and nowadays I'm see lots of people being drastically misinformed by relatively new players all the time.

I think this is the sort of thing that would have been more valuable early in ESO's lifespan, but if there's life in the game yet, something to this effect would counteract the overwhelming loss of knowledge about game mechanics we've been suffering as end-game players leave or become occasional seasonal visitors. Those players provide pretty much all the knowledge that the game doesn't. If those players aren't part of ESO's target market, as it seems increasingly is the case, perhaps the best way forward is get that info into the game itself.