I don't know, can you backup your argument with some links/research? I couldn't find anything
This guide here https://gbatemp.net/threads/aio-ps4-exploit-guide.497858/ says:
"DONT USE ONLINE DNS IF YOU HAVE LEGIT PSN CONTENT ON YOUR CONSOLE: IT WONT BLOCK SONY 100% & CAN DEACTIVATE IT."
I don't think they could legally deactivate paid content unless you got banned. no one knows what sony looks for, so there's no way I could prove what I'm saying. it's just pure observation. we don't even know what they look for on the ps3, but we have a good idea. there are three files in the profile/user folder that relay processes, router information, ip, idps, etc. it doesn't mention history just currently played title, but it's probably historically recorded on sony's end, so a blank one might be a red flag. you can delete the notification.db and a new one will be created, I'm sure that's probably sent to sony. play time, dunno. there's no such file on the ps3.
If you are connected online in general (not necessarily to PSN) then Sony could have hardcoded an IP address that it skips the console ID and results of a few tests to.
I have no idea if it does but having my secure systems I don't want hacked phoning home via hidden means sounds like something I would do. Some companies doing similar things have been shown to be lazy enough to just use the stock services rather than registering totallynotSonyspyingoperation.biz and directing stuff there such that a basic DNS block of any known online service/company URLs would in turn knock out any phone home attempts but still allow you to access non device maker sites/services.