@ewan_klein This is something we're hoping to address, if not completely solve , through a new data collaboration platform being worked on. As Dan mentioned, it's called "DBHub.io".
We're still getting the basic bits in place, and the "Issues" section, called "Discussions", is just a placeholder for the next few weeks.
The concept for the platform is fairly simple. It's a way to share data sets using the same model as Git/GitHub. eg forks, merging, + social aspects
There's a development server online that generally runs the latest code, and you're quite welcome to play with that... and even attempt busting it if you want... as long as you file bug reports if you manage to.
Obviously hoping the platform gets good traction, and works out well. We do have one potential advantage, in that it'll be the "Cloud" component for (eg integrated with) a popular SQLite GUI, which generally gets a shade over 1 mill downloads for each release.
Fingers crossed, etc.