well, I'll have to say I debug networks more often than I create them, so I often cut & paste groups of nodes and tweak parameters to compare output, or copy & paste info/panel CHOPs to look at values. most of the time I just want the nodes paste right under the current group.
however, I do see why you might want nodes to paste under your cursor, even in the same network, so I've added an option to do that. if you use ctrl-shift-v instead of ctrl-v in the next experimental, it'll paste nodes right under your mouse. ctrl-v will continue to paste under the copied or newly pasted nodes if any, or under the mouse if it is the first paste in a new network.
hope this helps.