@bk69
Wrong.
'all right' and 'alright' are pronounced indistinguishably, just like when someone says "should've" it sounds like they said "should of" but you really should use the correct version for what they said, even if the character doesn't realize it.
No, they are not indistinguishable. Now they can be, of it can be very obvious they are very different, depending on who is speaking.
Now I specifically listed Mark Twain for a reason. If he was to follow what you suggest, everything in the following quote would have been lost.
Yes. You know that one-laigged n***** dat belongs to old Misto Brandish? Well, he sot up a bank, en say anybody dat put in a dollar would git fo' dollars mo' at de en' er de year.
That is the trick of accurately putting in a dialect, if you want the reader to be able to hear it in their head as intended. And I know I have had more than one try to "correct" me when I had characters speak in a similar manner.
And I also on a linguistic side find it unnatural and stupid to fight when our language tries to shift. In the past, our language changed constantly. New words being invented, new definitions of words even. But only in the last century or so have you had this concept of what should and should not be used taken such a strong hold.
Just go to the South, and try to tell them that "Y'all" ain't "proper" and should not be used. And even worse is "all y'all". And any southerner knows that "you all" and "y'all" is not pronounced in anywhere near the same way.
Others may not detect it, but those that live there can. And the same with the word in question that started this. After all, it is not even new.
40 years ago, Kenny Loggins had a hit song called "I'm Alright". And there is more than enough evidence that in the last half-century or more that "alright" has morphed it's own definition, separate from the source "all right".
I myself would pronounce and use them very differently, because I see them and say them differently. "All right, you are correct, I see that now," is how I would say and spell the first way. And because I have had speech training I tend to be very careful enunciating because of having too overcome a speech impediment.
But if I was to say "Yea, I'm feeling alright, just leave me alone," I would say that very differently. In fact, if I was writing it as a dialect how I would actually say it, that would put in "feelin", because I tend to drop the "G" sound at the end. And also use for the first contraction "I'ma". So that would have started "Yea, I'ma feelin alright".
Now maybe I am simply more sensitive to actually hearing dialects. Having lived in almost all areas of the country, I can pick them up and even mimic these differences. I very much can pick up the "Southern California" accent, and can even now pick up the "Northern California" accent. As well as the one I used in Idaho. And can tell the difference between North Carolina and Alabama.
But do not make the mistake of thinking that they are indistinguishable. You may not be able to tell the difference, but that does not mean others can not tell the difference.
Of course, we can always just drop all dialects and regional accents, and force everybody to write and use the Mid-Atlantic Accent.