Vent: Scored some awesome old wood for my shed build, but now I'm feeling guilty about it

I mean, maybe it's just me, but I was pumped to get this weathered barn wood for my backyard shed project. The guy selling it online gave me a great deal, and it looks perfect for what I need. When I went to pick it up, though, he kinda hinted that it came from a place that was torn down without proper permits. Now I'm torn because using reclaimed stuff seems good, but I don't want to be part of something sketchy. Idk, like, is it okay to use materials if you're not sure where they really came from? I just wanted to save some cash and do things myself. What would you guys do in this spot?