This is a simple idea but it means a lot to me because it would save me A LOT of time scrolling!
Take a look at that screenshot^
I was scrolling through a thread that had over 1000 replies once, and it took me AGES to get to the bottom on my phone, unlike my laptop which has a ‘back’ button and a quicker scroll time!
I believe the forums (mobile version) should have a ‘jump to the bottom’ button next to where it says you are up to. For the screenshot, 282 of 358.