Paul, I am not censoring your replies. I have no power to do that. I am suggesting that they be disregarded. There is a time to insist on being right. That time is not when a newbie is asking for advice on a topic that could cause them personal injury if they get it wrong. I don't care how much experience you claim to have, if you are giving dangerous advice, i will call you out on it. That is the responsible thing to do. i will not stand by and watch people be given dangerous advice by someone who should know better.
That said, I acknowledge that you may have a point. There are circumstances where not grounding is appropriate. However, to claim that not grounding is *safer* is not responsible, bad advice, those circumstances are not common, and you really need to understand the concept of "not muddying the waters". For the purposes of this discussion, the correct advice is "yes, you should ground if possible", full stop. This is not a discussion to get into the subtleties, because it simply muddies the waters and confuses the questioner.
Please stop putting being right over being responsible. And if a little judicious rudeness gets this point across, so much the better. I have actually constrained myself, your responses actually anger me a lot more than I'm getting across. Intentionally putting someone in harm's way for the purposes of ego satiation is one of my triggers.
OP, if you have any doubts at all, please consult an electrician. This is what they're paid for
EDIT: I just remembered something I had forgotten. About ten years ago, I moved back to my hometown of Toledo, Ohio, and the only job I could get was a near minimum wage job at a call center for AT&T@Home. I was ridiculously overqualified for that job, and the training was boring. I kept doing pretty much what you're doing, and giving way more information than was needed, just to show that I knew it. Training was taken over by an ex military guy for a day and he basically told me to shut up. I caught up with him and expressed my displeasure, and he basically told me that while I was right, it was confusing the issue, and it's really not appropriate to do that. It's a lesson I haven't forgotten. Sometimes, even if you know something to be true, the best course of action is to shut up and let things be simple.
Oh, and if I ever give bad or dangerous advice, I *expect* to get called out on it. That's the responsible thing to do. I may not like it, but I promise I'll think about it. Usually I do the right thing.