Now look, every time someone asks about a torque wrench, some respond that they are unnecessary. For some, with enough experience, that may be true. But this person came here having destroyed more in parts than it would probably cost to buy the tool.

Why not respond that not everyone is mechanically gifted or experienced, and that for their own sake, they should get a torque wrench. It can't hurt, and may save a ton in LBS costs or additional ruined parts.