I think that mindset plays in a couple of ways. First, if a person doesn't want existence proven, yep, keep your evidence to yourself. Second, if YOU want YOU to be the one that proves existence, you have to keep your evidence to yourself. Most of have a network of sorts and SOMEONE will recognize the background. When that happens, you'll have many other people in your spot and your chance .. and likely theirs .. to prove existence vanishes when the traffic increases.
I have pictures I wish I could share, not of bigfoot, but to illustrate stories / accounts I've shared here in writing several times. Sure as heck, if I post those pictures, someone will recognize the location 'cause there are a couple fairly clear identifying land marks and when that happens, my chance to get audio again, or to see anything, vanishes like "stink" in a tornado.