Honestly, I've done that exact thing with a rumor about a new clinic. The trick is to look for the first person who posted it as a fact, not just shared it. Usually it's someone who just made a wild guess that sounded smart and then it spread. You'll drive yourself crazy trying to find a real source that doesn't exist.

Can confirm, I learned more from my broken first website than any tutorial lol.

Honestly, "sag and wobble" sounds a bit dramatic for a simple fence.