This 2% quality loss after each repair is very huge change and i would like someone to answer my questions, as we should know that if our weapon can become uselless after few repairs, we need to know how to use it.
Few good points and question has been introduced or asked there and i want to repeat these with no answer.
When exactly does the 2% drop happen?Obviously it drop when you repair it. But, say it is 49.5/50 and you repair it. What happens? Does the drop depend how damage is the weapon? or is it always 2% ? If it doesn't, it is obviously better to use the blade to the extreme limits, like 4/50 and then repair it. I would like to hear from someone who knows the exact answer, before i express my opinion. And i also want to know how to use my blade, without throwing it away. This brings me to another question.
What about rare or weapons made on special occassions?Some say, don't use it if it is so special. I say that a weapon is to be used. What other purpose may it have, if someone made it not to be nice looking, but also deadly? Of course, as it is repaired, it will change, maybe its quality will decrease. I will give a sword as example:
What do we do exactly to repair it? I don't think we need any parts for it, if the blade and the hilt are one piece of metal (only there is some additional meterial at the hilt so that it fir the hand well). And the rare weapons are done in as good way as possible (thats one reason why they are rare). So what we do is
sharpening the blade only. Nothing more. (If the sword will break in half, it needs much more advanced reparing as was very nice described in some above post, where experts was quoted as far as i understood). The
quality will decrease only when due to continued sharpening, the hardened surface will be teared. And only in such case. So if you repair the blade and you don't tear the hardened surface yet, the blade will be like brand new. When you tear it appart due to sharpening, the quality will
drop to a certan value and not lower Why?
A steel sword consists of the core made of normal steel which is tought, but also elastic and the hardened edge which is even more tought, but not elastic. Thats why only the sharp edge is hardened. (The process of hardening is adding additional molecules of coal (or nitrogen (better in modern times) to the structure of steel, while normal steel has much less coal in it.
So, concluding, while you are gradually tearing the hardened surface appart
and the not hardened steel goes gradually to outside,
only then the quality is dropping. Once you do it completly, the quality won't drop any furher, because every deeper material has exacty the same properties. Lets say, the quality won't drop anymore, once it is 40 and was 50.
I know what I'm saying, coz i have been studying at university about steel.
Maybe one question remains, if you keep sharpening the blade, when will the material end? So the blade is 150mm wide of excellent quality steel. Try polishing it. I don't believe you will tear appart by doing this even 1/4 of it. It will maybe happen after years of extensive sharpening... years... So that if you will sharpen the blade till it disappear, is out.
For the interested or not knowing I'd like to point out that iron and steel isn't the same material almost at all. Yes, it is both made of Fe, but steel is additionally plastically treated and thats why it is more durable and elastic. What matters is the structure, not the kind of molecules itself.
Restoring qualityAs pointed above, you can reforge a weapon. The question is why do it? The topic of rare weapons si brought again. You obviously won't reforge simple longsword. You will buy a new one. What if you can't buy a weapon of the same kind?
Think of Tolkien LoTR, specifically the sword by which the Sauron was killed? It was shattered into pieces. Are you going to advice to buy a new one in such occassion?

It was reforged by Elrond and given to Aragorn AFAIR. It's quality obviously wasn't near zero, even though the weapon was destroyed much worse than a blade with few scratches, but in one piece.
It makes no sense, that if you have a rare weapon, you have no option to reforge it and restore its quality. You can always reharden the sharp edge and add mterial, if the blade became too thin.
It is expensive, yes. But the owner will pay as much as needed if the weapon he own is special and means a lot, not only because of damage.
Te quality drop without chance to reforge is very lacking feature. I think it should be priority to finish the feature with next update. It's like releasing decaying of things without a way to repair or buy new ones.
I have spent a bit time on that post to explain te matter as good as i can. Please someone in charge to answer and consider, then express opinion and decission.
Thank You.