1) Increase the stack size for components to a minimum of 20. For high volume items like enchanting dust, increase stack size to 100 or maybe 200.
2) Please add new recipes to non-gear professions in post-expansion patches. 99% of new recipes in the content patches go to gear-oriented professions while Alchemists, Enchanters and the like typically get little or nothing to look forward to.
3) Please update the interface for professions to enable bulk crafting processes for activities such as milling, prospecting, etc. One of my readers had an excellent suggestion to use the channeled spell mechanic to execute bulk actions.
4) Let us store enchanted scrolls in our enchanting bags!
5) Chaos Orbs are hard to collect on alts who don't run dungeons. It would be good to have another way to earn those. Currently Tailors can still create Dreamcloth (and therefore epic gear) without grouping. Other crafting toons are chained to the chaos orb mechanic. Since the new expansion is supposed to bring alternate ways for players to accomplish goals, this should be included in the list.
6) Lots of us would like to see gem stacking get fixed, currently gems will not stack when created and we have to manually stack them.
7) Provide a way for players to pass faction gains to their alts, so we don't have to grind the same faction over and over to collect all the recipes on our different crafting toons.
8) Our readers would love some epic chain quests for awesome tradeskill-oriented items like a portable forge, super-sized profession bags or possibly a special soulbound mount. Ideally these epic quest chains would not require PVE or PVP.
9) All professions should have the same top end ilevel on items they can craft. Jewelcrafters and Scribes got shafted with their best items being only i346 while Tailors/Smiths/etc were able to make i359 items. Naturally the JC/Scribe items became obsolete in the very first content patch and they have gotten no meaningful items to replace them.
10) There is strong interest in having special crafting titles such as Tinker, Scribe, Smith, Tailor, etc. We would prefer that the titles be earned by something more significant than just capping a profession. Possibilities include learning say 90% of all recipes from that profession (or some other firm number that equates to the same). An excellent reader suggestion was for titles be tied to how many crafts you've done within the profession, similar to the guild achievements (1000/2500/5000/etc).
We had over fifty different ideas and suggestions in our poll that didn't make the top ten but still have merit in their own right. If you're looking for more ideas you can see the full poll results here:
We also had lots of awesome feedback in our original "Complain About Professions Day" post. If you'd like to get more details and context on the ideas that went into the poll, you can review the original blog post and commentary here:
Thank you for inviting us to share our feedback on Engineering and I hope you don't object to the expansion of that notion =)