Do not be afraid to kill your PCs. Not egregiously, via Rocks Fall Everyone Dies, but the world acts and reacts. If your PCs are trigger-happy murderhoboes, they might find themselves on wanted posters with a significant bounty. Theirs is ostensibly not the only adventuring group, and nobler heroes might take it upon themselves to prepare accordingly to deal with the threat to peaceful communities the party represents.
Do not be afraid to kill your PCs. Not egregiously, via Rocks Fall Everyone Dies, but the world acts and reacts. If your PCs are trigger-happy murderhoboes, they might find themselves on wanted posters with a significant bounty. Theirs is ostensibly not the only adventuring group, and nobler heroes might take it upon themselves to prepare accordingly to deal with the threat to peaceful communities the party represents.