I think monetisation is more important on Peertube than other federated platforms I can think of.

We want people to post high quality videos on PeerTube. The production of high quality video content requires a lot of work and often also a decent chunk of money to produce. It’s not like a toot or a post on Pixelfed, which is often not labour intensive at all. A photographer or an artist might very well showcase their work on Pixelfed, or an author their writing on Mastodon, but it would not compete with their business idea as people who are interested would still need to buy prints/high resolution versions/ebooks/subscriptions/whatever.

On PeerTube, it’s very different. We want content creators to not only put money and time into creating quality content, but ideally we want them to host the content themselves in order to maintain full control over it. Without monetisation there’s just no reason why they would be interested in doing that.

The question of how is of course much more difficult than the why.

Sponsorships is one obvious candidate. In theory this wouldn’t require anything extra from Peertube - the producers of videos could easily add their own ads within the videos. However, sponsors are only interested in sponsoring content that has an audience, and the audience is on YouTube. Sponsored content is also potentially bad for obvious reasons.

Donations might make more sense, as they scale better to smaller but dedicated audiences. It is difficult to get people to cross the threshold for making them, but it’s not exactly easy to make a profit on YouTube either. Donations good because they encourage quality, rather than ads which tend to favour views over substance.

So finally, traditional ads. We all hate them. They suck, and if they’re incorporated they’ll probably be blocked anyway. But I’m sure there’s a case to be made in their favour - if it’s implemented on the instance level, I certainly wouldn’t be in a position to criticize. It could be necessary in order to host content on free instances, where people could build a following and then move on to self-hosting or join more restrictive ad-free instances should they get the opportunity to.

Personally I wouldn’t be opposed to having a sort of virtual tip jar functionality. I could imagine myself paying $25 into a virtual wallet maintained by Liberapay, and to press a button underneath PeerTube videos to donate $1 to the creator whenever I found something was worthy of kudos. Maybe users with non-empty wallets could be rewarded with extra filters in Sepia search or something like that.

The best answer to why monetisation hasn’t been figured out on PeerTube yet is, however, that it hasn’t been figured out on the Internet in general. It’s just really difficult, and every push towards monetisation tends to be the first step towards any service becoming completely shit. It’s a really difficult problem. The Fediverse and PeerTube might solve some problems by being less dependant on monetisation in the first place, but that doesn’t automatically make it an easy fix. More than anything we probably need an attitude change.

A good start would be to challenge the culture that makes monetisation so difficult, for example by making a donation to FramaSoft. Or simply make active use of the “support” button that already exists under many PeerTube videos. :)