@Silfren77 & @Ukankissthis;
[No, I can't/won't kiss this.]
The "Delete This Hero" option does NOT appear if you just go through your Tapestry to get to your characters.
You have to use the "hamburger" Main Menu icon, then "Heroes", then choose the game, then the hero. Only then will the option appear to the left of the portrait. Verified this morning that it works with both Chrome and FF. 😇
NOTE: This is exactly how I described doing it (with screen shots) in the post above years ago. Unless there really is a regional difference, which I seriously doubt, I bet people are not using the Main Menu button to start the process. 🤨