I guess no one wants to sell anything at a decent price...

they are "decent" prices, but nobody wants to sell for less and nobody wants to buy for more.
the fact that you can't "freely" trade makes it hard to sell stuff anymore.

Well no one is even responding with what they want. They're just like "make me a good offer" and then never respond.

Not really. I just bought 300hp through the marketplace a few days ago.

Sell one of those new treasure high rares for 200hp each with a predefined amount of tacked on gold amount to make sure it's someone from jsp and give fg when you get the completed deal.

whats the going rate on fg vs hp? just curious i dont use the fg anymore but im heavy into rage right now. kinda want to get a feel for what i can get. over 900fg for trade

don't get me wrong, it isn't impossible.
it's just a lot harder without the whole person to person trade, making this "TCG" half of what it should've been.

Paying 14fg/hp for 400+ amounts.

I got this for u

is there still that 2 week period for trades in this game?

Yes, but it really easy to trade on the bazaar, especially with the event HRs. They're only worth like 1 HP each and can be sold for up to 200.