When someone posts an ad on a job site, Craigslist or even FWJ, they usually receive many responses. People who place ads here have commented many times about how quickly they start getting responses and are very impressed at the caliber of applicants they are getting.
If think about the fact that there may be at least 100 responses to an ad (and there may be two or three times that many), you may be intimidated by that. Some people may choose not to apply for something that they may be well suited for because of it.