Gave my opinion on it here - http://forums.backpack.tf/index.php?/topic/54622-refined-metal-pricepricing-marketplacetf/#entry549766. If anyone would like to discuss more, please do so in that thread. If you would like me to respond, quote my post so I get a notification.

Refined metal suggestions cannot be considered the same way as any other suggestion. Because the dollar value on every time is based on this, it's all the more reason to consider very carefully the difference between the intrinsic value on an item and what it gets bought and sold for. It's most important here to do our best to identify the intrinsic value. What do I mean by that? Let's consider a few different things.

(1) The vast majority of cash transactions happen in keys which trade at 1.80-1.90 USD, putting refined solidly around 0.08 USD. The difference isn't a small one. Refined moves very slowly. It's easily possible to move thousands of keys at 1.90 per key before moving even a few hundred refined at 0.10 per ref. When considering the intrinsic dollar value of all items, you have to keep these values in consideration - that the intrinsic refined value of all items is around 0.08 USD per ref.

(2) Because refined moves so slowly, it's just not worth it from a time and energy perspective for highly reputable people to trade in refined. Refined moves most commonly on highly reputable sites. People are willing to pay more for the convenience and added security. This additional value added is not part of the intrinsic value of the item itself and it certainly is not a value that gets transferred to all other items in the tf2 community, even keys.

Yes, it would be best if we could base dollar values off keys, but that's just not possible with they way the website is hard-coded. So we have to work with what we have to give our best possible estimate of intrinsic value here. 0.09 seems the most common trade point, and traders seem to struggle to sell for even that.

Anyone can sell keys on marketplace.tf

Posting this so you can edit your post to be accurate, will delete this post in 15 min.. :)