I dunno ... Lately i find out that some things are better keep unanswered.
As here, when people ask "why would illithid infect a Warforged" ? I dont know! Im not an illithid, he probably just want to. Would it be too bad to just leave it open?
I still dont understand why cant we change Race for our hirelings. Lets us play Githyanki as racist as they trully are!