With every sympathy for what you've said @Kiwi, I am a supporting member and would like to continue to do so as the site is quite important to me. However, I shall make this the last year in which I contribute if this goes on beyond the trial.
Sorry, but as a paying member, I do not want to see any third party stuff. I have been tolerant because @ped mentioned that BC was looking to make this possible for paying subscribers. I run a script blocker which prevents Ezoic (and others) from running scripts on my machine. The fact that this is happening despite blocking their script has upset me somewhat.
I don't believe that a cookie is the ONLY way to identify paying and non-paying subscribers after sign-in.