@marisosx, excellent post(s), just a few comments to compare my experience.
There are reasons for the non-rechargeable batteries; there are some threads here on SB. If you check the voltage of the batteries before any dive, they are superior to rechargeable ones (at least, they were according to
@tbone1004 if I remember well what he wrote one or two years ago). I check the voltage any time before a cave dive (rarely in a lake or at sea, but I don't do very aggressive dives - yet)
My opinion: I believe the "right-hand thing" is there because of standardized procedures. I never heard that a person failed a course because of that; in real life, you wouldn't check the regulator, or if you do, nobody cares which hand you use as long as the entire procedure is safe AND fast (yes, using the right-hand makes it slightly faster).
Really? It never happened to me... maybe some comments about my drysuit in summer (and, to be honest, they were right - unnecessary for the kind of dives I was doing, but I am not going to buy a wetsuit just for 5/10 dives per year). But maybe I was lucky
You will not stop noticing bad habits. But, trust me, you will eventually come back to enjoy any instabuddy, except for the dangerous ones.
That's actually a positive thing... it prevents you from killing yourself
So, that is a bit complicated. There are two kinds of people in this regard:
- some of these people really want to do it only the GUE way; they dive almost always with GUE people, but they do not criticize people who are following a different philosophy, at least publicly;
- all the others (who are the majority in my experience), who really do not care about your philosophy.
Usually, the loudest speakers are the ones at a low level (read it: fundies or, sometimes tec1/cave1)
About people losing their certification, I heard only a guy who enrolled on a cave course some years after the fundies, but he didn't practice at all and couldn't perform a valve drill, so the instructor removed his cert. I never heard other stories... But I guess for drug abuse, anyone would lose it