Back in our teen's and early 20's we spent a bit of time wandering around some local hard rock mines. On our 8th or 9th time out there we were walking through an adit, we had been through many times and that seemed extremely stable. Well in the span of a month there had been a small collapse. It was not much and was still passable but one of the bigger bits that came down was a 0.5m slab. This is when we decided hard hats (at the least) were a must
Now I am older with a family, there is no way I would some of the things we did back then, but with the right safety gear there are still a few mines I would venture into. But I would personally never take someone with me who was not willing to be safety conscious. I think this may also be where some of the controversy from this thread is coming from. Nothing wrong with a few photos of the mines, but maybe don't include the ones with people in precarious places, or the ones with people not waring safety gear? Surely you can see most of the people who have said something about safety concerns, just want to be careful about what message we send to the public, as this is a public forum.
As others have said there may not be anything illegal about what people are doing and there may be no laws in terms of exploring old mines, but if we are going to the trouble of posting online where anyone can see, then why not promote doing the right thing and doing it the right way?
HTY, I have no problems with you and have enjoyed a lot of your posts. But I keep reading about this 7 years experience... I still remember when you started up on the AGP forums just after me in 2012, which was 3 years ago and it did not seem like you had 4 years experience at that stage, am I missing something?