That was my first thought... That the threads may have been merged. But they're not.
And the angle in this one was different. This one was about someone who practiced an EFATO turn-back in his own aircraft (kudos for that) and found out that 500' was possible using a technique with which he was comfortable.
But in the course of his explanation we found a fundamental flaw in his reasoning and aerodynamic understanding. We tried to correct that but he wouldn't have any of it, apparently.