Do you want literally all contributors to be visible, or would it be acceptable with just, say, top 20? top 30? Just thinking maybe having 90 entries popping up, including contributions of a few k by someone who deleted at week 10 might not be very useful.
I do think it's a reasonable change, but I guess I am right to assume that it would be low priority? (just considering development resources here)
Maybe you could have a list of all contributors, just not showing them all automatically. Perhaps showing top 10 and under that, a possibility to click "show 10 more". So if you wanted, you could click it 8 times to see also the player who deleted at week 10, if you want to.