This is a very narrow and short-sided point of view. Push the logic of this argument a little bit further, why is the issue lnxg33k1's internet and electricity a problem? The reason is that of course Discord controls the servers and they pay for the infra, and they essentially own your ability to chat with your friends. That isn't a problem until it becomes a problem[0]. Until then it's buying time, hoping Discord doesn't get bought by Amazon or Meta and then daddy decides it's time to extract rent.

Again, going to highlight it's such a short-sided POV, this sort of thinking "today it's free, it's better, and thus it is the right choice for the investment of my time, my community's time, even my project's time." Such short sided thinking in favor of convenience right now is way too common leads to a lot of problems (in society generally but that's another discussion). I really want people to have a longer term view of utility for the sake of longevity and stability of things as important as our channels of communication.

[0] https://news.ycombinator.com/item?id=29711001 this was just posted a few hours ago.