Dom,
I agree with your concern about excess use of accents in writing. It may be appropriate on the stage but it can be overdone in a written medium. Many of us who speak with an accent are educated to the point that we write - and would prefer to read - in Standard English. There are so many accents and dialects in English that their use in literature disenfranchises many - perhaps most - readers
I think you have a number of good suggestions from earlier responses.
I have another problem with many writers, and that's misspelling or the use of an inappropriate homophone (e.g. there/their/they're). Spellcheck is great, but it doesn't identify the wrong word spelled correctly.
Hollywood gets a lot of things wrong and it has considerable influence on popular culture. As a native southerner, I'm painfully aware that many people here are now using "y'all" for the singular. (Of course, that could be Yankees who have moved south for the better quality of life.) What really bugs me is hearing a new plural form "all y'all".
Dom, hope y'all're having a great summer! Still looking forward to WT12.