Three times now I have experienced jobs posted on LinkedIn that the original recruitment company had no idea were on there. Turns out Linkedin have been scrapping data from other recruitment sites & posting that data/positions on their platform. One of the positions they advertised (illegally) took 30 minutes for me to complete the application. A complete waste of my time as the position was never available, so I found out. It had been filled 6 months prior to me applying! Highly unethical & shameful Linkedin!