Passwords text (mostly) shifted to Security Guide. -> Fixed.
Stylometry text (mostly) shifted to Surfing Post Blogging entry -> Fixed.
System Hardening Checklist links check (ok) and some minor added text -> Fixed.
On the main wiki contents page, there is two instances of "Known Issues" (under General Information and Bugs sections). Suggest you delete one of them.
Under "Bugs" section, the Troubleshooting entry is mostly in development. Suggest it is moved to the "Dev" section until it is done and a one-liner references it from either "Reporting Bugs" or "Known Issues". Very, very draft material like that doesn't belong on the main wiki page.
I might edit the "Install Additional Software" part next as an easy win before doing Advanced Security Guide. Once those two are done, all of the entries under "Get Whonix" and "First Steps with Whonix" will be finished. Rejigging the various sections in these entries will kill the phabricator item too.
(I haven't forgotten the "TODO" list, I'll get to it.)
After that point, it's probably worth editing remaining items in "General Information" (easy, generally short) and doing some significant merging, renaming and shifting stuff around in these first 3 sections, because I just don't like the haphazard nature of it.
I'd like to see "Download Whonix", "Secure Whonix" "Whonix Features and Design" or similar titling (TBA; requires significant consideration). Section renaming should imitate other software projects like QubesOS and Linux platforms.
There are simply too many "General Information" entries right now before the user gets to the meat e.g. downloading, verifying, securing the platform and so on. Also, Bridges doesn't belong under "First Steps" since only 3% of all Tor users do this configuration etc.