i dont doubt they are mining with our hardware. i am all too aware what a shady person joshua zipkin is. check out public data at the delaware and montgomery county systems. he's a piece of crap.
What's up with that address?
Total Received $ 359,272.10
Final Balance $ 359,272.10
Also:
https://blockchain.info/address/1swrtyBsp9odruX65upeyubAVSAyggh78Warning! this bitcoin address contains transactions which may be double spends. You should be extremely careful when trusting any transactions to or from this address.
How do we know that their wallet? Has anyone paid them with bitcoin? That is the wallet we should be looking at? There will be a transaction log to/from that can be tracked. Follow the money. But first we need to know which wallet.