funny how they use a fetish as an insult in a degenerate site such as this, is like me called u a "foot lover", like what? lol
No offense but it sounds like you don't really understand. 'Cuck' is not primarily about fetish.
The term cuck literally means a guy whose wife gets impregnated by another man, resulting in the guy wasting his resources raising a child that is not his own. More specifically, the point is that from an evolutionary perspective, the goal of all humans is to pass on their DNA; a cheating wife impedes a man's progress in this regard. A cheating man who has bastard children outside of the marriage and then divides his resources to support those children, also effectively does the same in reverse to his wife.
Keep in mind, we tend to think in very modern terms, but evolution moves slowly. For the overwhelming majority of history, many thousands of years - resources were scarce, and starvation and death due to inadequate resources was common. Social safety nets were virtually non-existent. Even today, plenty of the world still faces this problem. So it's not just a an issue of jealousy. Devoting resources to raise someone else's child means your own true children potentially not having enough of what they need.
It is also worth noting that despite the modern fascination with guys who get off on the idea of being "cucked," they make up a tiny percentage of cucking; the overwhelming majority of the time in reality the cuck does not know or is delusional / in denial about the fact that their wife is cuckolding them.
Over time, the term 'cuck' has been used more broadly, as tends to happen with most terms (see NTR for example lol.)
In this case, the point is that people are being deceived into devoting resources to a dev who is misleading them (the cheating wife in this analogy.) I don't think anyone truly subscribes to Patreon thinking "hey let me pay for this dev to do lines of blow off hookers' ass cracks and deliver jack shit for the next two years!" - They are obviously believing that their subscription is helping to continue progress on the fucking game. However, it starts to become obvious and they remain in denial - not unlike guys who are being cheated on by their wife, despite their friends and family seeing it quite plainly.
The analogy is more apt than you realize.