"This has nothing to do with the sort of routing that pretty much any other node in the network is doing.

The c= node has an exclusivity deal with CashApp so all their users's payment have to go through c=.

If the CashApp nodes would be open to accept channels from anyone the c= APR would be much lower because their entire operation depends on the special setup.

It's basically a combination of an accounting trick combined with obfuscated fees for the CashApp users.

CashApp could just charge their users a spending fee but instead they do not and split it of to c= which then claims to earn by "routing"." - @bigrouter at SN