don't understand this sentiment at all. I have no idea what any of what you're posting has to do with "well intentions" or "money mak[ing] people do anything".Pretty sure they're saying that the YT developers would break their cool hack if they knew about it, because they want to keep their jobs (eg, getting paid, or "making money"). Sounds like the OP wants to view all developers as adhering to some Platonic ideal version of a "hacker ethic" where they wouldn't do something like that for a reason as banal as money.
I can sympathise with this position, but I acknowledge the reality that - at the end of the day - people are usually going to prioritize buying food, paying rent, etc., over adherence to abstract ethical principles. That's unfortunate in many ways, but hunger is a powerful motivation.
Are you just mad that dislikes were removed from YouTube? I don't see what that has to do with any of those statements.
I get the impression that the OP thing was lamenting the YT thing both specifically and as an example of a general class of similar situations... places where you have to hold back from sharing a neat hack because if you shared it, somebody would come along and ruin it.