[mrjeeves]

Yes, you can do the first one. There's a post scrubber on the right hand side of any thread with buttons for top and bottom.

Disclaimer: Flarum core dev

[micromacrofoot]

They're asking if posts are loaded in and out with Javascript as you scroll.

[luceos]

Yes they are. When you scroll outside of the currently loaded results, a new set of results will be loaded using ajax/xhr.