It's always good to have proof-readers, so by the time you upload your comics, the worst typos are already fixed. I'm German and I'm working on a rather plot-heavy novel right now, so finding the right words and using correct grammar is always a nightmare. My early versions were pretty awkward in hindsight, but thanks to test-readers, I'm pretty confident now. I don't mind if people correct my work, even if it means that I have to go back to an old page when I could work on a new page instead. I want to print my stuff sooner or later, so using correct English is mandatory.