The designer/constructor has very free hands in terms of shaping, which allows for significant savings on materials and thus purchasing costs. This is particularly true, when the object is unusually shaped and would normally require a lot of machining and chip removal.
When using hot pressing, the raw object can very quickly be pressed out in those parts where it is largest.
It is also possible to shape text or other symbols directly on the object during the forging process. The text or symbol is simply engraved in the mould, either as negative (into the object) or as positive (projecting from the object).