When i do a google search on the list of addnodes one comes back as the same as on the Antibitcoin node list and one on the Asiadigicoin node list from c-cex list of nodes on them coins. does this mean they are the same dev, or just that 2 people part of them coins are part of this ?

addnode=216.189.153.244
addnode=192.52.166.80

Sorry if it's a dumb question just wanted to know what and where addnodes come from i suppose. cheers