In my opinion, the HQ system is good.
Even the star stats shouldnt be changed. Every star is always the same + percentage.
If you want to see the real stats, SE could also reveal all other hidden attributes.
But you loose fun. Isn't +3 stars not a good indication?

If you think NQ items get worthless. Yes indeed, but all items under R40 will get worthless.
Bric and Brac. Is this new? What Do you want? In FFXI i ve used those items and degraded them.

Many chars are crafting just for repairment. They dont care for HQ.
Although Offtopic: I know characters, which believe in moonphase and totally rely on
Magic Craftsmanship. Most of them have exceptional results. I told them to HQ this and they did.

What is about quality?

In my opinion the entire system is a random number generator, influenced by certain attributes.
Lets say, random number of 1 to 999 possible. Lets further say. HQ +3 is on 950 to 999. The point is, how to achieve this.
I think there is a hardcap or a logarhythm which doesnt allow to force an HQ to 100%.
Why Hq+3 with low quality possible? A) for High Level Items B) Just for all the chars out there, who have a slight chance to get something exceptional. Why not allow it?
Don't be jealous. The hard working doesnt get all the efforts. This is life.

RMT. Well they are and they will always be. This is an MMORPG not a single char craft
boredom. Because of the actual local Leve system, you cant surpress all chars. Killing and claiming all mobs for certain items? Do you really think, they will do it?