Do these logs ever get pruned? Is it worth knowing that 10 years ago, Johnny took 1.5 seconds to click the upvote button? Or is it just easier to keep it, imagi

Do these logs ever get pruned? Is it worth knowing that 10 years ago, Johnny took 1.5 seconds to click the upvote button? Or is it just easier to keep it, imagining some what-if value extraction?