In fact, 10 days ago I posted my interest in buying steem with fiat.
https://steemit.com/steemit/@cryptogram/are-you-selling-steem
@blocktrades mentions the very important issue of regulations. I believe the real issue is trust, something Jerry emphasizes well enough.
But being it an issue of trust alone: why the app? It is about individuals transacting with there own Steemit friends. And starting with small amounts.
I am ready to send a tiny amount of money upfront to someones paypal, for example. If it works, we can increase the amounts. If it doesn´t, I won´t do business with this person.
Anyone willing to sell a tiny amount of steem for usd, can contact me on discord at this address: @gregario.