Is this the same C Shrem that was find guilty and went to prison?
Yes. IIRC he was released a few months ago.
Thanks, so how does all this work?
I can see the xd detail looking at the wallet peers. Does it need to be activated or is it automatic?
It depends on the software that you are running. Different software will support different services. Additionally if you have pruning enabled you will be disabling NODE_NETWORK for your node. If you run Bitcoin Core 0.13.1+, your node will be xd. Earlier versions should be x5 and even older ones will be x1.
Just worked that out a minute ago lol thanks.