4) I don't know if the product is a "shit" product or not. That's why I said moonyguy to try more and pick one he likes.
Even if you are not getting paid to promote this "free VPN" extension OR you are not related to them, keep in mind that ANY free VPN/proxy is a spyware. They need to pay their servers, right? If you don't pay for the product, you are the product.
Why would you advertise something like this? This doesn't necessarily mean you deserve a negative trust right away, BUT it is kinda shady (also considering it was your first post).