When answering question before I always used to use the "Heading" option present on the formatting box. This produces the following markdown:

```
## Heading ##

```

However, within the past couple of days my answers have been getting edited to change it to:

```
# Heading

```

Along with a comment usually saying something like "Use this format instead".

As far as I know this was never a problem in the past and my original heading even works for the leader boards some questions include.

Has the consensus on what headings to use changed?

---

My main reason for asking is I've seen a few suggested edits that do this and I'm not sure about whether or not to approve them. And I'd also like to save others the trouble of having to edit my answers.