I think Z told me how to do this sometime in the past, and it's probably really simple once you find the right button to click or whatever,
but I can't figure out how to find a member's past posts. ??

It should be as simple as clicking on their profile and seeing their posts, but it's not that easy to integrate. Here's the easiest way:

https://backcountrypilot.org/forum/search

You can also get to that page by clicking the green button that says "advanced search" at the top of the Latest Topics page.

Put the username into the "author" field. If you specify only the author name with no search terms in the above field, it will show you all of that user's posts.

I've added a search button in the forum header, next to View Options.

Yeah, that rings a bell.
I knew it was something simple,
just couldnt recall how.