This is where you can find detailed archives of all the things I've done in the past on Miiverse, including saved HTML files and more. If you have anything that I don't include here, email me with a link to the file and I'll consider adding it.
Dropbox folder with my saved HTML files
Arian's archive, which also includes some older stuff from me
I pwned U's Google Drive folder, which contains screenshots of various content from the start of the Miiverse Custom Image Tool era and earlier