I truly hope a fellow (or fellowette) Hubber would let me know if they spot errors in my hubs. I'm a traditionalist in terms of writing and grammar rules, but I absolutely know it's far too easy to miss an editing mistake and flinch if you don't spot it.
As with others here, I'd probably prefer a personal message, so I can make the edits and send a heartfelt Thank You! to the kind soul who helped me out. Besides, we can then become site-buddies and stay in touch.
JenJen is right that it's important for our hubs to be as accurate and free of errors as possible. Those who resent the feedback not only harm themselves, they bring down the ratings of the entire site (and this includes the ones who type i rather than I).
Great question - thanks for putting the topic out for comment!