Honestly, I haven't been looking for specific usernames, just test data to play with. Now that I think the system is MOSTLY "good enough", I have to change my parser to start uploading to my server instead of to my personal PC.
Then, once the data is all on my server, I can modify my front-end app to point to that server instead of my PC, and I'll be ready for initial release.
When I release this, I'm going to be making a read-only user account for my SQL database, and release the source code for both the parser and the front end, so that anyone with sufficient programming skills can improve on what I started, if they want to go to the Internet Archive and download their own copy of the CoH forums archive. The parsing has been ROUGH, there's a LOT of "junk" and corruption in a lot of the files that the Wayback machine stored... I don't see any way around that, TBH...