#2 Real world use case? Well DNM's do offer their vendors to use XMR, but as i recognize there are not much customers using XMR by now?
Message from LitePaid.com, the LiteBit.eu altcoins payment gateway plugin for webshops :
"At this moment we are working on the accepment of Monero."
So, soon, directly possible to pay with XMR on most modern webshops with this free plugin.