There aren't any problems. If anything, it's a more honest reflection of history, whereas rebase will erase past current state and remove your ability to wind b

There aren't any problems. If anything, it's a more honest reflection of history, whereas rebase will erase past current state and remove your ability to wind backwards to the way the world actually was. If you view a neat ahistorical history as a primary artifact of development, then you need rebase.