Much of what I read in the OP is not myth, but misinformation or misunderstanding of the law. Myths are something that generally cannot be readily proved or disproved(such as a Wild Turkey can see the slightest movement from 200 yards away), while the hunting regs of any state are readily available. But tahunua001 makes a good point, that many folks enter the woods without knowing the laws of their state, instead relying on barroom banter, internet gossip and what grandpa told them 30 years ago. On top of that, they insist on telling others the same misguided information.
Read and know the present regs of your state. Rules change every year here in Wisconsin and most of the time, the new rules are outlined in the pamphlet that comes with your license. Still every year I'm amazed at the amount of folks I come across in the woods that want to argue about what is legal and what isn't. I've come to the point of carrying that little pamphlet in my pack with me, not to show them how much more I know than they do, but to inform and teach. Much like when I reffed youth Hockey. Showing the coach the new rule as written in the book generally ended any argument over the call.