In other words, only a fool would do so.
Being a woodworker, I would like to point out that a three-legged stool is always stable, no matter the surface it sets on. It is always the fourlegged, or more table, stool or chair that wobbles, and occasionally needs a match book or other shimming to sit properly.
The editor intimates incorrectly that it would be difficult and undesirable to build a three legged stool.
Hopefully you will reassess and clarify your evaluation.