comment doesn't support multiple backticks code span

Question

Quote from markdown syntax:

To include a literal backtick character within a code span, you can use multiple backticks as the opening and closing delimiters:

``There is a literal backtick (`) here.``

stackvoverflow's comment system doesn't support this.

Answer 1

This is included in the improvements to comment markdown as documented here.

Answer 2

Comments have very limited markdown support anyway.
You can already escape a backtick using a backslash, which seems more intuitive than multiple backticks:

`literal backtick \` here`