I don’t think that’s really what Reddit is going to show them. I think, like all things, it’s probably an answer in the middle: if an advertiser is popular on Reddit, Redditors will literally go out of their way to organise and advertise for you by clicking pixels on a page. That is something that advertisers will pay attention to. They don’t care that the number go up and down, but they do care about they product that Reddit can provide, which is a truly loyal fan base.