In the postings, as answering with quote, we don't use repley, we use quote. In the German translation there is +Quote and Quote
In the Ressource Manager you reply without quoting and so reply realy is reply
I'm not sure what is better to change, but for us it's much better to have two phrases. At the moment we use "Quote" in the Ressource Manager and this is wrong.
I've done this 1 1/2 years ago and we had a hard discussion in the German community. All told, and they were right, that quote in postings is the right and correct way of using this phrase. Reply is the correct way for quick reply, but if you are quote, you have to quote. Same here
this is wrong, because you quote ...
It's not completely wrong. It's just personal preference. But, with that in mind, if you translate the text as designed, then it would be correct in the Resource Manager. So, technically, what you're doing is wrong, because it makes the language used in other add-ons wrong.
My honest advice would be to change it in your language pack to Quote / Reply as it is by default. That would arguably be more correct than having "Quote" buttons in various add-ons that actually are "Reply".