Hello there Ivan Levente and welcome to our forum!
I'm also a big fan of R4A and focus a lot of my efforts there.
Regarding PayPal and PTC/PTP sites, most of us have moved on long ago.. it's no longer a mainstream player in this industry.
It's almost a negative factor due to the instability they've caused and keep causing to such sites.
I prefer to use bitcoin, due to the freedom of its nature, others have already set up alternatives.
As for the traffic decrease it's mostly the sites, we advertise on that reduced the delivery speed.
We'll keep trying to get the best out of them though.
Btw, I've just read the latest update regarding Brave browser..
A concern I have about it is how safe it is when using it with shields down, since that's a requirement.
I'm quite sure your site is safe but we can't really know for sure when it comes to the advertisers.
Loading sites through frames, can make our browsers more vulnerable than regular ones.
Since it's already decided though, please just make sure to run security tests thoroughly when an advertiser places an order.
If an infected site gets through, it could harm R4A's reputation which would be bad for all of us.
I'm sure you'll do your best though, so keep up the good work.
We hope to see you hanging around here from time to time.
And we are always open to new opportunities, ideas and partnerships.