hi Susan, solid post. I fully agree with #1, sloppy homophones are a sure fire way to destroy your credibility as a man/woman of letters.
#2 (run-on’s) and #3 (caps) I consider less problematic, I think writers who have established their wordsmith chops and command of grammar should be afforded some leeway in such stylistic choices.
Case in point, I consider myself a meticulous writer in that I labor over each phrase and double-check for errors and repetitive word selection before I hit Publish. I also have been experimenting with a stream-of-consciousness run-on form, very curious to hear what you think of these mini-essays.
Best, Joe Varadi