Tracks - personally I think the mix is right, you have the old (spa, monza, Montreal, monaco,suzuka,interlagos) which have close barriers etc and really are only accepted as they are so established, the updated ( Silverstone, hockenheim) and the modern. In my opinion the problem circuits tend to be either late 80s and early 90s circuits (magny-cours, a1-ring, Barcelona, hungaroring) where there was too little knowledge of how to make circuits safe but also challenging&exciting or street circuits (Valencia, Singapore, Abu Dhabi). The most recent circuits (Austin, Istanbul, Malaysia, Korea, India) get the balance right between safety, challenge& racing. Would I like to see drivers punished more for mistakes? yes but not at the expense of massive crashes&fatalities, if you look at on-board shots from 10 years ago I think that shows more why there are less accidents - modrern cars have so much more grip&stability.