Am I alone in thinking that it would be confusing and unnecessary to have a "save for later" feature in the form of "favourite" as well as "save for later" in the form of "bookmark" side by side? 


@dankwraith @Gargron I also do not use favourite to mean "save for later."
Another instance I used to be active on actually forked the original code to add a "save for later" function, which:
a) acted more like a bookmark function
b) didn't send a notification to the person whose toot you were saving
I used it sparingly because I was using it for toots I truly wanted to save for later, rather than "favourite," which I mostly use as a sort of "thumbs up" acknowledgement of a good post.