Some of that is content categorization in the eyes of the all-seeing algorithm. Let’s say you upload a type of content “A” that gets big views but you’ve been uploading a type of content “B” that gets small views for a while. The youtube algorithm will aggressively try to grow content A and massively deprioritize content B, even among other channels that produce content B.
A guy I know who does youtube/twitch had to create a second channel for his content B because it would get sub-1k views when he would get tens of thousands of views on his content A. Just by uploading somewhere else he started to get higher view counts.
Exactly why that happens isn’t known, but a common theory is that youtube wants to push what it knows works. They have no real reason to give your content B a chance because they know content A will sell. And they do this even though this outcome was the result of a feedback loop.
The long story short is that you are being made to (by default) give up rights that you should have, particularly around class action lawsuits. It’s strictly bad for you and strictly good for the company. They probably shouldn’t be allowed to do this. Since they are, the only thing we can do to protest it is to opt-out.
Maybe you’ll never sue discord. But maybe someday there will be a lawsuit brought against discord by someone else. A few ideas for topics might include a security vulnerability that leaks personal information, the use of discord content for AI training data (e.g. copyright issues), or the safety of minors online. If you don’t opt-out, you can’t be a part of such lawsuits if they ever become relevant. This overall weakens these lawsuits and empowers companies like discord to do more shady things with less fear of repercussions.
And, since the vast majority of people will never opt-out (since you’re opted in by default) these kinds of lawsuits are weakened from the start. That’s why every company in the US is doing this forced arbitration thing. At this point, they would be crazy not to since it’s such a good thing for them and the average person doesn’t care enough about it.