I think it of course depends on the type of feedback but there really isn't anything to say against konstructive Feedback. Because if you get it, it means the readers like your story and want to see it become (in their eyes) better. This of course doesn't mean you need to adhere to the feedback...
Numbering is a must, but a real name not really. I generally don't like them if they spoiler me on the content of the chapter if it isn't something that was already clear from the chapters before. Exceptions are if it's puns those are always welcome. But in the end it doesn't really matter much...