Joke or not does not matter, I have seen a couple people already saying that they do not want dlc, and that any players that want to give the devs extra money just donate to them, which is just plain wrong and needs to be stated before people default that as an answer when the word "microtransaction" is seen.
Here are some articles to consider for any developer reading this.
Over the past few years, Ubisoft has seen a notable shift in its earnings for various titles, SeekingAlpha reports. Game sales were buoyed this year by South Park: The Fractured But Whole and Assassin’s Creed: Origins, but microtransactions shot up even further, growing 1.83x in 12 months compared to 1.57x for game sales. Ubisoft also got a boost from the Switch, but even with Nintendo’s new platform, microtransactions brought home the bacon.
https://www.extremetech.com/extreme/258638-ubisofts-microtransaction-revenue-just-beat-digital-sales-first-time
in the next few years freemium model will become the dominant on PC games and consoles games markets. In favor of this claim goes positive economic experience of the publishers who have implemented microtransactions in their games, as well as increasing market share of MOBA and MMO games, especially suitable for microtransactions implementation.
https://www.researchgate.net/publication/322313479_Effects_of_micro_transactions_on_video_games_industry
Distimo analyst Christel Schoger wrote in the report. “Free apps with in-app purchases generate the majority of the revenue in the app stores.”
https://venturebeat.com/2014/02/21/report-finds-free-to-play-microtransactions-make-up-79-of-u-s-app-store-revenues/