Craigslist as a sham... for the most part...

So whats the deal with craigslist? That site seems like it could offer a ton of stuff that will fancy you, but in reality its just a spammers playground. It seems like it. As far as my experiences go, at least. I honestly responded to over 200 postings for a job, not some fucking CEO position, but lame dog walking, driving, delivery, flier distributing jobs, jobs that don't need a fucking PHD or what not, and all I got out of it, is a bunch more spam messages in my business inbox. Do these assholes really think that getting stupid offers and other retarded messages into peoples inbox will get them some kind of business? Like... Really!?!? Where do they come off doing hat shit? Its fucking annoying! And honestly all you can do is flag the poster, but whats that gonna do? They will just post again! Now someone needs to make a site that doesn't allow that shit being spread all over the site. I am enraged about this nonsense, what the hell does one do about it? How many complaints and actions did it take for craigslist to shut down their prostitution section? And I don't understand, how do these assholes actually make money off of getting peoples e-mails, and spamming the shit out of their mailbox... If you have to spend money on posting an ad for a job offering. What would it take to build a site thats similar to craigslist, except it would remove the ad if people respond to it. Is there any internet, website building, guru out there? I think i just came up with a great site idea, and you could name it with your name...