I’m not really sure how someone can post a job for a proofreader and say ‘no experience required’. Surely some form of proof (no pun intended) that the applicant can actually READ would be beneficial to not only the company acting as the agent but also to the client whose hard work is being put into the hands of someone to check that everything is ok. So, what, any average Joe off the street with a tentative grasp of the English language should be entrusted with the publishing future of someone elses hard work? I don’t think so.
The job of a proofreader is to thoroughly check over a piece of work to make sure that there are no mistakes: No missing words, no grammatical errors, no spelling or punctuation mistakes. Considering the average person in this day and age (judging by the volume of inane drivvel splattered all over the internet in the forms of blogs - mine included- livejournals, websites, etc etc etc) seems incapable of distinguishing between too/to and your/you’re and knowing where an apostrophe should be placed.. i.e. NOT in "a pair of shoe’s"….
I can safely say I wouldn’t want anyone near my work who can’t manage the basics. Websites promoting proofreading/editorial jobs to any old Tom, Dick or Harry are doing a real disservice to the publishing world.