There are no reference links in OP's feedback, so there's no way of knowing what these transactions are or if it's bogus feedback.
PayPal is dangerous with bitcoin, regardless of anybody's history of good feedback and never mind the fact that OP doesn't have an extensive track record doing deals where he hasn't charged back. I would avoid this at all costs.
For that theory to add up.....bogus feedback.
I would still have to have those people alt accounts "on the payroll" all these years later and ready to vouch for me at anytime. Unless I was a multi and could log into those accounts to vouch for myself?? Because im pretty sure those people accounts aren't deleted, whether they are inactive now is a different story.
I think a better scam scheme would be bait and switch. Build an extensive track record, then I could scam people for the last bit without suspicion? I think this is related to exit scamming?
Correction: I'm pretty sure my recent 2018 transaction just last month has a reference link. Feel free to click on it anytime.
Anyway..."avoid
at all costs" is really dramatic. But to each their own. Everyone is granted an opinion, just as they have the right to avoid.