How do i sell TF2 items using Auto Delivery Bot?

If i remember correctly auto bot delivery for Team Fortress 2 items had been disabled since july of 2018, and yet i still see people creating Sell orders with it now and then.
For example: - it was made by person who joined Gameflip only in august of 2018 and still somehow managed to list and sell hundreds of tf2 items with bot delivery…
Is there some hidden way to activate it? Because whenever i try, it only shows “coordinated transfer” as available method.

It’s probably posted using the Gameflip API. You will need to know some JavaScript to use it.

So it is still possible if i figure out how to do it with Gameflip API? I mean i always thought that tf2 bots were completely disabled because of tf2 inventory limits and that no one can use them