I have no idea why someone would say this.
Just browsing in general, you'll find several examples of responses to requests for advice about work/odds/etc. In fact, it's quite amazing the trouble/effort many people here invest in the attempt assist others.
Heck, two threads below this one is another titled "2013 Applicant: Post Your Work" followed by 13 pages of responses! Also, some people PM their replies. These would not not show up as part of those 13 pages.