The metaphor is more about how types of fish are distributed in the vast 'sea' of gamers. Most of them are small fish, so they don't pay anything or very little for your game. There's also the term dolphins, for people that pay medium-sized amounts or regularly and then whales for people that pour big amounts of money into your game (and like the headline mentions, these can be ridiculous sums).
I understand the metaphor in the article. I just don't understand why my comment that actually has nothing at all to do with the article just keeps on getting upvotes. The article makes sense, my comment after reading it makes none. I thought maybe I'd lucked out and came up with something that somehow was actually related in someway but no it's really not applicable. It really confused me at first when I read down and people were talking about the economy and 99%vs1% below in an article I thought was about literal whales.
Here's how your comment made sense to me even though I had read the article and understood that it's not talking about literal "whales":
You mention few customers bringing in the major share of the revenue, and that's exactly what the article linked is about.