Now that its gone, so many people are getting scammed off of transfer trades.

It has been under construction/maintenance for a long period now.
It's off the menus but its still there: SafeTrade
As you should see it is available but isn't completely working

Well, many people consider safetrade a bad way of trading.
People complain that its not working or they are losing thier items/tc.
Its easier to just transfer instead of safetrade. And if you get scammed it can easily get solved by marketsquad.