Significant UX upgrade in Mastodon. If you're looking at someone else's post on a different server than your own, you no longer have to do multiple clicks and copy/paste to share the item.
You just put your own hosting server into the popup box and it shows you the post in context in your own timeline, and you can share it from there.
No this isn't perfect -- still too many steps.
But it's a major improvement.
@dangillmor
It's a big help that the address of your own server is "sticky" so you don't have to type it every time.