just two observations from skimming the text. i didn't read the code.
On Mon, Mar 02, 2026 at 11:37:25AM +0800, Kevin J. McCarthy wrote:
spam headers
i'd refer to these as "spam classification headers" or some such for
clarity.
leave_folded
i think i'd go with "verbatim", provided the implicitly widened scope
doesn't (potentially) conflict with something else. it's more concise
and less technical.
"preformatted" would also fit, as it directly names the reason why one
would want to use the feature.