I'm not sure it'll be possible to create rich archives of your own data once Reddit's API changes go through, so I made a tool that creates a SQLite archive of everything (that you can update over time).
As a sidenote, the circuit-y background of your site makes it unreadable with Dark Reader addon. I disabled it for your site and it looks great, but maybe you would like to check it.
It happened to me too, but I would say more an issue with the extension's logic than the site. I think it tried to reverse small-looking elements with logic that they won't be too bright.