Unless they are crazy and gullible like Anonymint, why would anyone build an asset that needs NXT to act as a gateway?

NXT is obsolete tech from the stone age of crypto.  The platforms of choice this year are ETH, rootstock.io, Bitshares, and others.

The only thing still being built on NXT is SuperNet. 

And all SuperNet can be is a gateway to more interesting projects, that will be built upon it, and thats why its interesting.

Sound familiar?   

Once the SuperNet scam ends, NXT is just abandonware.