I am also on the Steem/Hive blockchain for more than four years. I registered on it on 2017.05.17.
I am using PayPal since 2014.02.22 without any problems. I really have not had any problems with it so far, but I heard from various people about misteriously locked/banned accounts.
I think that PayPal should properly explain why they banned your account permanently. They should tell you what rule(s) did you broke to get permanently banned. You have the right to know the exact reason(s).
It is a shame that PayPal can ban people's accounts without properly given reason(s) and explanations.
If you asked for a proper explanation, and they still did not tell you, then PayPal should be sued for this. Maybe it would be a good idea to look for banned people, and sue PayPal collectively. They ruined your (and probably many other people's) life after all.
If you get a permanent ban from anywhere, you have the right to exactly know why they gave you a permanent ban.
Giving you a permanent ban by saying that "you broke our acceptable use policy" is like putting you in jail/prison by saying that "you broke the law".
Complete nonsense.
I looked into it. And what I found was...I agreed to their terms when I signed up. Problem is, in their terms, they clearly state they have an acceptable use policy and they can change it at anytime. If you break their AUP, they can ban your account.
Sucks.
What's the worst of it is, I was using my account there for 17 years, and didn't change a thing...So they are basically saying I was 'breaking' their AUP for 17 years? Just foolishness and I'm glad to be done with them even if they threw my life into turmoil lol