Crowdsoursing discussion questions

(1) In the article Crowdsourcing: The art of a crowd,  Carol Strickland maintains that crowdsourcing

"erases the line between artist and audience".   Including the audience to this degree may put the final project at risk to irreverent or poor quality submissions.  In this artform, should a certain amount of screening be done with submissions or does that subtract from the origional purpose of crowdsoursing?