Well I can't really describe "exact" things I'd want, it's more having the post history to observe my general thought progression through certain periods of my Touhou career. I might be able to get what I want written down sooner rather than later, who knows. Don't worry about extracting anything right now, though thanks for the offer.
But on that note, I imagine we wouldn't be able to log in to Tom's archived version once the original goes down? In terms of my post history, the stuff I'd want to look up for reference is spread across many forum threads, so going to my post history from my profile would be the best way for me to do that on my own.
From what i can tell, all of your posts are in the CSV file and Tom's archive. The only issue though is your name is Japanese characters, and the CSV doesn't seem to have used UTF-16 in the Author names, rather opting to use U+ denotation to store your name. For reference, I'm pretty sure your name is
<U+3075><U+306D><U+3093>1 in the csv file.
Main benefit of having the CSV file with everything in it is that most of the hard work of crawling the website and getting all the posts into an easily convertible format has already been done. All that's left would be to figure out a way to make searching the contents and present it in an easy to use fashion. The way I'm thinking about going about it is to make a converter that can convert CSV into an SQL database, then let SQL handle the searching once it's been converted over. Theoretically, since topic IDs were preserved in the CSV file, to search the database and link to a specific page in the static HTML archive. Would also make it possible to list all the posts made by a user, or show the entire forum thread on a single page.
Might take a while on my end tho, life is busy.