Okay, looks like the real su3su2u1 is gone for good. Archived snapshots of his blog are available, though.
I scraped what I could out of the feedly. This zip should have the past 500 days or so. https://drive.google.com/file/d/0BwzdZTHqha9tQWFZdkw3QkRUbkU/view?usp=sharing
Notes:
- This goes back to close to the beginning, but not quite. Around the start of reviews for HPMOR chapter 20.
- I generated this by creating a new feedly account, going to the page, holding down the End key for a while, then saving.
- Any posts that resulted from a message sent, either from anon or another blog only show the question and first answer. Further reblogs are shown, but only the original question/answer show up
- drive has limited bandwidth. I don’t expect this to get too many hits (more than 1000), but if it does and google blocks it I can host it elsewhere.