I am trying to understand the connection. Sorry I am very poor in it :-P
How do you get these two addresses connected to find that the address 17k4EVPznuTQ7q7CujbFFvTqx97ff6CZZN is connected with the user figmentofmyass? I am using it as an example to understand your table format?
figmentofmyass is sweeping coins from the 122h address into the 17k4 address, which is connected to all the other addresses in the table. Basically each pair of addresses for each user is linked that way.
Another interesting thing is the timing. Most of these sweeps happen around the same time, some in the same block, which seems to be too much of a coincidence for them to be unrelated. For example: