We change rarities around sometimes to make things more uniform. We've also just now added r101 and r150 to be fraggable! The currency rarity was added to prevent people from fragging existing currencies by mistake, as well as helping our ongoing effort to make the rarities more clear.

You're lucky you happened to see my comment and were able to frag a bunch before the cache updated. :P

I was in the process of doing the site update thread, but this popped up before I was able to.

Yeah, we added anything listed on the currency page. r150 is so broad and we've really been working to categorize those items quite a bit!

It's okay! You can also feel free to just ask us to make a site update thread or something if it hasn't been done.

I mentioned it on the site update thread, but just so it's here, too: we're going to be using the Recycle Beast more and items like this will be great there.