As a Roblox developer, it is currently too hard to tell if i will need to scroll very far back from a reply to get to the reply i was looking at beforehand if i click a reply to it.
basically, each reply would have a line that looks like this:
remember that this is just an example, and i would love to see this implemented.
If Roblox is able to address this issue, it would improve my experience using the forum because i can detect how far away it is and if it is worth my time to read.