Don't waste your time just to click on the ads in the "PTC-PTC Scam (fraudster)". Proven many PTC who never pays his member when it reached the minimum payment threshold, for example www.orange-mails.com which promises to:
Get Paid by clicking!
All Emails Worth $ 2000
All ptc worth $ 1000
$ 6000 signup bonus
$ 500 referral bonus
Redeemption starts only $ 5000000
We send redemption with 48 hours
With the price of ads per click around 1000 USD, fantastic.

Many PTC sites are like that, starting from the pay by 0.5 cent up to 10000 USD per click and sometimes it is hard to distinguish the PTC scam and not. Next how to figure out the scam PTC sites? originating from casually kicks, finally able to as well. Its pretty easy, namely through the mobile phone browser (opera mini). Here's the trick (might help):

First you sign up on the PTC site that you believe to be legit (via computer).
Then try opening the ads given to you from PTC sites that use the browser opera mini via your mobile phone (of course must be logged in first).
There is usually a waiting time to see a display ad for 30 seconds. Well in Mobile right time 30 seconds will not run, so wait for 30 seconds or so and then reload the page again using a # 0.
If it works then try opening your account, see my earn earning you gain no..??

Conclusion:

If your earning increase, it is clear that PTC is scam, because its too cheap-looking script website and can be downloaded for free on the internet.
Obviously legit PTC site is using the script a nice website, and can not be run with any included software also run autoclick on mobile browsers. For example just bux. to this is one of the PTC site that really legit.
And do not easily enticed by the PTC site that promises a high fee.