Thank you all very much for your feedback. I've just updated the website with Facebook Sign In (which is mandatory if you want to post new job offer). This should filter out at least those not having fake Facebook profiles since your name and the URL to your profile are displayed under the job details page. I'm also working on pre-moderation and implementing email notifications (I will update the website within the next couple hours).

Again, thank you very much for all your valuable feedback.