Yeah, I think it's not clear what the right thing to do is here.
I can understand that collection is just for showing off and thus not trading. So, why not show it.
But, the reality is that if someone sees something they want in a collection, they will likely try to make an offer for it. And, maybe that's bad if the person doesn't want to trade right now.
The page for activating Not Currently Trading Mode says:
> This feature will hide your listings from searches and matching and prevent anyone from sending an offer to you. But, you will still have access to GameTZ otherwise. So, you can still use the forums and such.
It doesn't make a distinction for collection listings. So, I don't know.
The code seems to show an effort to allow collections to be viewed, but it's broken. One example of this is that if you do AllAtOnce, it will show the collection (page 1).
But, on the other hand, the mobile site does not show it at all (gives the NCT message if you click collection). The same goes for the New Layout. So, it's definitely inconsistent.
Just curious, why were you looking at his collection?