Well that's just bull.

Anyways, to the original question :

Can you make discussions that are trade offers?

You gotta be kidding.

You have to SIGN IN THROUGH STEAM, which is already a pain,

JUST TO SEARCH FOR ITEMS.

Alright genuises, Who came up with this idea that just DESTROYED a quick and easy way to find items you want?

I did, I still get the message. There's a little loading symbol for a split second and that message pops up, being a dota 2 item or tf2 item.

The reason I ask this is because when I go to the TF2 Trading Outpost site, When I try to search for any specific items I get the following message :

Oh hey!

You know what to do.