If you read my quoted post in the post I was answering to, I said you needed to be subscribed to both services. Can't you people really read? And then you keep trying to lecture other people
To be clear, as stated by their faq, having both services will convert to the higher tier for as long as the longest time of either of them. People bought some months of PS now and years-worth of PS+ so they would be converted to PS+ premium for as long as their PS+ subscription ran. That same people then found out they weren't able to stack their PS+ subscription.