Let´s just ignore that in about 90% of all cases a Pak40, Raketenwerfer, Panzerschreck or Panzer IV is firing at it which all easily bounce. Even Panthers and JPIVs bounce on a regular basis if the IS-2 is at medium range. No, we just take that one, doctrinal most expensive TD in the game that´s supposed to hard counter tanks to show how "weak" the IS-2s armor is.
~50% or less to bounce, depending on AT source you use.
Besides, the thread is filled with people complaining that tank destroyers destroy tanks(some people must've hit their heads too hard and too often recently I guess?).
I've merely added one more example.
3 stugs will chew through IS-2 armor like it was a warm butter.
Should we buff churchills and pershings armor as well maybe?
Tiger is best all-rounder tank in game, decent survivability, exceptional firepower and penetration, exceptional range for generalist tank.
You can't have it all you know, if people fail with current tiger, its definitely not tanks fault.
Again, tank destroyers destroy tanks, that includes Tiger.
IS-2 can take couple more shots, but its own TTK for opposing armor is longer, it all balances out at the end.
Its really hard to believe that non axis peasant tanks were better armored then superior krupp steel armor, but its how it was and no, that is not a reason to buff wunderwaffe again.