I've written several hundred journal and newspaper articles. For decades I've written a piece, had it corrected by an editor and then seen the article published. I write hastily, make mistakes, and am very glad the editors are not like me. So when I began writing for Wikipedia 15 years ago, being bold and just publish came as a shock to me. It was the open peer review that helped me cross the line: it’s all in the open, and Wikipedia is really "the encyclopedia anyone can edit". Which also means that your own mistakes are blatantly clear for anyone to see. Do I make mistakes? Sure, everyone does. And if you have made a few hundred thousand edits on Wiki, it is likely that you have made at least a few dozen mistakes. I can even see a pattern in my mistakes.
At first I thought the whole "be bold" thing in Wiki was a bit ridiculous. But after years of working in Wikipedia, I see it's one of the main assets of Wikipedia. "Wikis like ours develop faster when everybody helps to fix problems, correct grammar, add facts, make sure wording is accurate, etc." True, really. But the mistakes you then inevitably make need to be corrected by fellow Wikipedians. So don’t be cross if someone tries to improve your text or images. Enjoy. This is one of the most important elements of Wikipedia.