1) When you level, you get x % of your debt forgiven
2) A certain amount of debt forgiven each day
3) If you are rezzed you have 50% less debt from that death, if you use an awaken you have 25% less debt from that death versus going to a hospital. It encourages players to actually stock up on supplies and bring healers on missions.
4) Scrappers should get less debt from dying (they do it a lot they are used to it). Alternatively you can actually have a power that reduces the XP debt from dying.