Snappy come-backs only make your condescending attitude that more obvious. People would respect you more and would value your advise more if you dropped the annoying attitude, but I'm not holding my breathe.
I'm not at all interested in respect; it's earned by knowledge, by actions, by doing. I don't care about your idea of my attitude or the value of my posts as we've been though too many such experiences where you ask a question and ignore the answers. Do you want me to paste that
paper trail here again?
You came here asking a question of members who, as far as I know, not a single one either works directly for a major camera manufacture or those of us who are beta's for these companies can speak outside our NDA's so you are asking a question that you should be asking to the actual manufacturers. See how far that gets you....
So the only answers you'll get are either based solely on opinions lacking in direct facts from the manufacturers or answers you will dismiss. Why ask? Just tell us the answer you wish to hear and maybe someone will tell you what you want to hear. One answer you got and it appears can't accept is, they don't offer a raw histogram because they choose not to provide a raw histogram. I know that probably either doesn't make sense to you or it isn't the answer you wish to hear. Would you be happy hearing that they don't because they all conspire to make photographers think a JPEG histogram is better than a raw Histogram? Or that every time a bell rings, or a photographer views a JPEG Histogram, an angel gets it's wings? Just tell us what you wish to hear, then you'll hear an answer that makes you happy.
Meanwhile, other's have told you how to get by without a raw Histogram, some have told you (and I agree), it's not useful nor necessary. Are you having problems learning to properly expose your raw data? If so ask; some here can teach you about this fundamental part of the science of Photography.
Now that the question has been answered, here's a new one you apparently don't wish to answer: where can we see examples of
your 'serious photography'?