If you use a desktop-client tool/search engine such as Web Ferret or (an even older application) NetPuller, and not exlude "finds" that cannot be validated, you may be able to find some of your older posts by keying (or running a search on) your username+braintalk, username+brain.hastypastry.net, and other combos.

It might draw up references to the posts and brief, but readable abstracts (by placing your cursor over the "finds").