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.

Edit:  Ok, just "avoid this" then.  The fact is that scammers would have no trouble either employing alt accounts for feedback OR buying an account with positive feedback to scam with.  That's why people here (like me) are paranoid about this sort of thing.