I don't want to be a sucker for ads. I don't want to support businesses that support our ad-polluted world. With my limited capacity to donate directly to creative work (which I'd incidentally rather do as part of a coordinated general public than just unilaterally), I favor donating to those who forgo ads rather than reward or support anything that accepts ads.
Now, I've hated ads for a long time. But I was still surprised how much I no longer feel fine considering KiwiCo. Now that I heard their ad, I feel like I don't want to be one of those people who is seen as following ads, and I don't want to support them. I imagine there's other products that don't budget as much for ads that I should go out of my way to seek out instead.
So for anyone like me, if you do paid ads, you just harmed your credibility with me.