Well, remember too, that it is still the claim owners LEGAL OBLIGATION to post signs at their claim.
I understand that signs get pulled sometimes, but that is primarily a problem w/ placer claims, on creeks, with roads adjacent. Lode claims tend to be "up in the hills" and I don't really buy that no one can keep a sign up.
Knowing which section/ quarter section you're actually in, while out in the woods, minute by minute, is truly impossible, even for trained land surveyors (I've worked with them). So, if you have a claim, not marked, and you expect that it's everyone else's responsibility to just "know" that you've got a paper filed in a cabinet somewhere, and you expect everybody to always know precisely what their legal location is........Simply not possible, which makes that expectation totally irrational.
Which is why it is a LEGAL OBLIGATION to post. No sign, no claim, period. I'll walk where I want, and if you inform me that I'm on your unmarked claim, I'll politely apologize and move immediately. BUT, I'm not doing YOUR WORK FOR YOU.
Post signs, or forfeit, or, just accept that once in a blue moon, someone like me just might drift through for a few hours.