Can the Unformatted Code Detector be disabled per user?

Backticks are a standard markdown syntax - they’re not Discourse specific. (read more in the commonmark spec).

But, if you want to avoid the backtick character you can indent the code by four spaces, or use the [code] bbcode wrapper:


Source:

    This is 
    some code

Result:

This is
some code

Source:

[code]
This is some code
[/code]

Result:

This is some code