the homepage URL of the scratcher that created the project …
and/or the URL of the remix tree within which the projects is/was
and/or the URL of all studios the project was in.

This would exchange the into a and then into a

Actually since 2.0, Scratch is scratching his head much more often than in 1.4 because Scratchrs can easily share/unshare/reshre/reunshare/… their projects.

I was so confused - at first I thought you were suggesting a block that took you to webpages.

I think this would be helpful - and wouldn't really be too hard to do.

I support.