People who never hear about GIMP in the first place are never going to use it.
Someone asks, "How did you make that?" and your answer is PhotoShop and not GIMP. That's one less person who might use GIMP, and one less person who might introduce GIMP to other people, and so forth.
Someone asks, "How did you make that?" and your answer is PhotoShop and not GIMP. That's one less person who might use GIMP, and one less person who might introduce GIMP to other people, and so forth.