There is a website with false rumors against Probux, though administrators have denied all farces.
Follow their response below;

The internet is a place where you can find many different viewpoints, and this makes it an magnificent place and full of information. However, not all information found on web are true or reliable.

The site containing this information, is based exclusively in a personal opinion, although the information present are based on rumors and false speculations.

Regarding the arguments presented:

Script - GeN3 heavily modified script, based in only one page.
└ Incorrect information

We took months to complete the script that we are using. All lines of code and html were made entirely by our team.
ProBux would be impracticable and never be stable if a Gen3 script was running due to the large numbers of simultaneous access to the site.
We use class, cronjobs, cache, gzip compression, indexes directly to the database, optimizations, etc. Things that a basic script as the GEN3 does not have, and it is not capable to support a system of high traffic, causing the system remains slow most of the time.
You can go and look at the ProBux's source code for any line similar or equal to the script mentioned and you will not find.
Judging by the similarity of a page, it would be foolish and childish to make a comparative statement like this.
The PTC systems follows a pattern, as well as search engines, social networks, emails, etc.
As you can see, even these big search engines, social networks and email providers have similarities in their pages but that does not mean that their systems are all the same.
That would be an argument totally invalid and absurd. It would be like saying, BING is Google, Gmail is Hotmail and AMAZON is Ebay.
The page has presented similarity, indeed, is identical to the NeoBux. A system in which we have great respect.
It would be another abusive comparison saying that by having a similar page of NeoBux, we are part of the same group.

The country is the same as other PTC sites.
└ Incorrect information

This is a comparison that has no logic, and gets to be funny if you think about it.
The country in question has about 190 million people and has the 5th largest population in the world.
If someone from that country, making a website in the same business segment, must necessarily be part of the same group of people?
Honestly, this has no logic.
That would be like saying: So if someone open a social networking site in the United States, or it is part of Facebook or Twitter?

PayPal account and their creation date.
└ Incorrect information

Our company had to make an account especially for transactions - ProBux, this account was created to move large volumes of transactions and for that you need a business account.
Is there a difference between a personal account and a business account in payment processor in question, as to use resources such as IPN and API (responsible for processing transactions and send instantly payments), you should have a specific account for this purpose.
And so, our company had to create this account and not use a personal account.
Again, another invalid and meaningless argument.

Registered Company (most likely bogus)
└ Incorrect information

ProBux is an authentic company, and can be accessed through the Trustwave's site (company that makes authenticity checks and services SSL).
To get the seal of "IDENTITY" by TrustWave is necessary to provide corporate documents, and only after they are analyzed, the authentication is provided.
The seal of authentication can be confirmed directly by Trustwave's site: https://sealserver.trustwave.com/cert.php?customerId=&size=105x54&style=normal&baseURL=www.probux.com
Again, another false argument that has no any veracity.

Fixed fake ads
└ Incorrect information

We have affiliate relationships with other advertisers websites, among them directly: EmpireMoney.com
The ads in which it makes reference(eToro, BinaryOptions, ect) are part of this affiliate network.
As you can see, all of our links make reference to our affiliate account.
eToro: http://links.empiremoney.com/click.php?af=9136&pd=1&ln=1&pf=8362
BinaryOptions: http://www.thebinaryoptions.com/?af=9136&pf=8362&emp=1
Again, another invalid and meaningless argument.

We believe that every person has the right to have your opinion, and respect even if it is wrong.
If there remains any doubt, just check our hard work - Latest News and our credibility - Payment Proofs.
We'll continue demonstrating through our actions and not just words that we are here to do serious work, for this reason we have invested so much time and dedication to the system.

ProBux is Legit , register under my referral link.
Thanksss