Your 1 outpost link and 1 at Classifieds are same person

It's opened for a week BUT it's poorly bumped (less bumped 22 hours ago)

He might've and PROBABLY changed prices, so unclear if he's been selling for 2.66 all the time

In his outpost trade he says he has 4 but in Classifieds he says 3 which indicates he sold 1, perhaps fast and perhaps not

Other than that, your second link of 3 ref unsolds is mine

I can say that it's poorly bumped, some days I bump it once, some days I bump it few times, not more

And to add up to it, from 5 days ago to 2 days ago I bumped it 0 times

And I also changed prices recently

My trade cannot be considered "unsold"

There are 2 pages on outpost with only 6 auto-bumpers

I know there aren't many so even one person selling 3 or 4 can be considered a lot but when there are almost 0 auto-bumpers, which means most trades are poorly bumped, it's kinda hard to call it unsold and make that change off of 1 trade

Unsolds at 3.33:

http://www.tf2outpost.com/trade/16391837 - Poorly bumped, last bump 16 hours ago

http://www.tf2outpost.com/trade/16435553 - Auto-bumper, valid unsold

Unsolds at 3 (excluding mine):

http://www.tf2outpost.com/trade/16434944 - Half poorly bumped, 1 hour ago last bump

http://www.tf2outpost.com/trade/16211474 - Poorly bumped, 22 hours ago last bump

http://www.tf2outpost.com/trade/16385353 - Unbumped, 6 days ago posted and 6 days ago last bump

http://www.tf2outpost.com/trade/16483791 - Auto-bumper, valid unsold

http://www.tf2outpost.com/trade/16494573 - Auto-bumper, however 1 day old, young

Conclusion:

You have 1 seller at 2.66, that is unknown how fast he sold or not as in to be considered a quicksale or not, he might be quickselling...

Your unsolds at 3 can show that 3.33 has no place in range, but most of them are still invalid because they are poorly bumped