It's easy to be negative. It's more difficult but more fun to be inventive and industrious.
To the peertube devs: don't let negative comments like this grind you down. Peertube has some great ideas and I think it can succeed.
Our industry has a long history of that kind of waste. Exhibit A is the dot-com bubble, but there are plenty of modern failures too. If we want to maximize innovation, we cannot be too suspicious of novelty, but we also can't let it blind us.
I'm not saying that there isn't anything. Just that new efforts should be making new mistakes.
(Also, the reason to use investment lingo is that investment is the field that specializes in examining cost-benefit tradeoffs for resource usage that hopefully leads to human benefit.)
And if we are going to demand evidence of critics, I think we should also demand evidence of promoters of things like this, who often seem guided by a Big Idea rather than any evidence of user needs or proven ability to solve those user needs.
One of the things that helped me was the notion of Appreciative Inquiry. Basically that when you are dealing with new things, you first look for the good points that you can amplify, not bad points to beat on.
That said, I think coding is a powerful push back toward the negative. Code breaks so easily that we're thoroughly trained to be on the lookout for the next failure point.
To argue an idea will succeed, you need to know and understand the whole concept, and be able to analyze it for flaws. And then you could be proved wrong by someone mentioning a single issue you didn't see before.
Even if you did see the problems people mention, to defend your point, you have to explain why each of them don't apply, which can be a lot of work.
And then, anyone deciding whether they agree with you or not would have to do the same thing, in order to be right in their opinion, so you get a lot less people willing to upvote you.
In that way, comment systems are focused on the negative and aren't a good space for creativity and coming up with new ideas. Now, please, tear into this and tell me where I'm wrong ;)
You also see it in the arts. Dark edgy music is deep and profound while happy dancey music is trite and stupid... in spite of the fact that dark edgy music is often no more musically interesting or innovative than the happy dancey stuff.
Content creation and hosting is a small problem compared with distribution and marketing. That's much of the reason why it's taking so long for software to eat entertainment. Distribution to interested parties is a process that took Hollywood half a century (and YouTube and Netflix) decades. Keep in mind, Netflix started by focusing just on distribution.
Good news is always good, but there's a difference between gaining access to tens of thousands of euros and getting to a first video distribution with 20 million views, for example. That's when people who work in content/entertainment will turn their heads and take notice.
Yet, is it perhaps possible that there might be something to be learned from the comments? Each is an exciting new opportunity for readers and developers to learn and perhaps even improve!