Message bodies have their leading whitespace removed resulting in the message looking like it's all left aligned even if it's not. My email as seen in the Gentoo Archives (Wayback Machine to preserve the current state): https://web.archive.org/web/20220221012538/https://archives.gentoo.org/gentoo-dev/message/b9c41c3eee11dfd67ae2ac09b47ee614 Compare to my email as seen in MARC: https://marc.info/?l=gentoo-dev&m=164540458304358
It looks like it's not just leading whitespace that gets removed. Multiple whitespaces gets truncated to a single whitespace as well. Basic example: Something like this. becomes: Something like this. This goes against the expected behavior of monospace blocks respecting pre-formatted text. Not to mention, it destroys the readability of patches, example snippets, etc that are posted onto the ml. Real world example: https://web.archive.org/web/20220604044150/https://archives.gentoo.org/gentoo-dev/message/93b543cbf87635ff114808188305d5b9 vs The same email in MARC: https://marc.info/?l=gentoo-dev&m=165430164524992
