You’ve invested in a good shaving brush. Look after it and it will last. Whether your brush is made from badger hair or synthetic, it is better that it dries ‘knot’ (hair) downwards rather than standing on the handle base.
The reason being that ‘hair up’ can cause water to sit at the base of the knot and promote mould growth, particularly in a humid environment. Using a brush stand allows any remaining moisture to fully drain, leaving the knot completely dry by the time you want to shave again.