PtP original concept required the Pay addresses stored in the meta data which is what “watermarking” is in the context of SAFE.
This is the idea that seems to be concerning many people and if it can be done easily and not having to jump through hoops then many more people would support PtP. And doing it as a API function then any app can use it for tipping too while keeping the pay address anon (some would still want anon tipping of their content)
Then maybe also have the API be able to control the original model of PtP so only what the user approves of gets a chance of the PtP reward attempt. Thus adverts and other undesirable content is not even given the network incentive