> Twitch subscriptions and Patreon has shown, that if you bind a website/project to a creator
> Most websites, and indeed open source projects are pretty faceless, and require limited interaction with it's creator
This is ultimately a polite way of saying that the "author" (which can be a content creator, a OSS maintainer) needs to establish a parasocial relationship, use a self-aggrandizing approach, and create drama to entertain its users.
This does work for content creators on Youtube, Patreon or Onlyfans, but ultimately detracts from the mission of delivering quality content that is useful or positively entertaining for the consumers of said content. The fans created in this way can go on to defend your failings or can be taken advantage of in a weakness, as can be seen in the case of the LTT sexual harassment allegation case and the health situation of Physics Girl.
However, I see no way for this to work in an open-source project, because users of an open source project mostly care about the functionality provided. Creating a parasocial relationship is mostly not viable in this space due to limited interaction, as you pointed out.
I've seen a few instances of OSS project maintainers using a chest-thumping, holier-than-thou approach to create drama, and said projects have either mostly become irrelevant over time or the open source project has continued to get attention only because the character of the maintainer has been buried and not well known to most.