First off, let me confess that I miss Vanguard's crafting game, and that I actually enjoy EQ2's crafting game as well. While both of those have their issues: grinding, grinding and more grinding, they are stand-alone, log-on-and-play activities. I've even spent hours in gathering groups.
ESO, like most current MMOs, has just tacked on a crafting system to make decent gear. It is completely dependent on combat advancement. Skill points are only earned through exploration, questing and killing. The Crafting System requires a lot of Skill Points. There is no way to level-up as a crafter without earning these skill points. Spending Skill Points in Crafting actually makes advancing as a crafter even harder: rarer materials, tougher zones.
Crafting as one levels seems to be an easy suggestion, but feels rather limiting. Trying to balance killing skills with crafting skills to be effective in both areas is a frustrating challenge. Waiting to craft until after developing effective killing skills seems even more limited, and is useless to the individual character. And the resource-gold-gear system is severely handicapped by the fractured guild-markets.
Seperating the skill-point system for crafting from skill points earned from killing would be the most common-sense suggestion. Of course it would require quite a bit of time and energy from the developers. But would create an appealing activity for many players. MMOs shouldn't have to focus solely on killing and questing.
Another suggestion is to rework the Crafting Writs. The tier-based turn-in locations make them delivery quests: if the writ is done in Stros M'Kai it should be turned in there not on the other side of the continent. Location-based writs would be more accessable than tier-based ones. The writs themselves could also be less specific:ten shields or ten health runes. Rewards could be based on the quality of the product. This would require some of that rare developer-time as well.
ESO is a great game, but I find its crafting system to be needlessly frustrating and unenjoyable.
Black-handed Hluill and his daughter Leyek of House Numaril.