I saw on Fiverr many people offer bunch of traffic for only $5. I would like to understand how these things works? are they spammers? are they adsense safe? or they are just bots? I am so confused. Pls help some example I saw on fiverr I will provide you 1500+ Multiple countries targetted Real Human website TRAFFIC Full Screen Page traffic... for $5 I will give you Traffic, 15000 Real Human Traffic for 2 websites Everyday for $5 I will make sure 2000/day real unique humans visit your website for 2days +14,000 pageview to boost your website TRAFFIC for $5 I will send 5,000 Geo Targeted Country And Category Website Traffic Visitors To Your Website for $5 etc.
Scam. They are either selling cost per click advertising, which you can do yourself for less with Adwords, you're buying "fake" traffic auto generated through a bot-net.
Well, if you have adsense you must not use anything like that. Always try to be honest and do it in the right way, google is the boss, you cant hide anything from him.