Thanks, I had in mind write a post/topic about it if/when I find time to do so. But briefly:
It struck me that with the rich editing capabilities we now have, you can turn a post into just about anything. A diary, a collection of notes, links to relevant places etc. Here’s something resembling a part of the sidebar for example:
So all that’s needed is a post - kinda like a “page” - that you can edit, and a quick way to access it.
One way is to use the bookmarking feature. If you access your bookmarks via the drop-down menu you’ll notice that you can pin a bookmark. That will keep it on top in your list. Having done that, you’re never more than three clicks away from accessing it.
So, where can you create and edit a post without bothering anyone? 
Discobot! Just message or write a reply to one of the threads and you’ll have a private post that you can edit and reshape as you wish. Discobot won’t mind.
I started exploring this today so this very much work in progress, but I hope you get the general idea. It’s not point and click but at least a way to create your own little place. And in principle, there’s no need for everyone to reinvent the wheel.