So I was looking for a post of mine from a year or two ago and could not find it with the search.
If anybody has tried to look through all of their old posts, well, it's a pain. You go to your profile and scroll down through your posts, and when you get to the bottom of the page you click on "Show More Posts" and it adds more posts but also takes you back to the top of the page so now you have to scroll through twice as much stuff and every time you get to the bottom and click on "Show More Posts" it does the same thing and it's kind of a nightmare if you have 500 posts like I do.
So: Go to your profile. Click on Posts. Hit the "End" button to go to the bottom of the page. Click on "Show More Posts", click on the "End" button again and keep doing these two things until you do not get a "Show More Posts" button. Now just print the page to a PDF file from your browser (go to Print, change the printer to "Save to PDF", and save the file.
You will have a PDF list of all of your posts and each one is hyperlinked to the post in HU.
This only works for those accessing HU using a computer. Sorry.