Using PayPal for Twitter's Tip Jar could reveal tipper's address to the recipient and possibly recipient's email to the tipper; Twitter says it will add a label (Brian Barrett/Wired)

Brian Barrett / Wired:
Using PayPal for Twitter's Tip Jar could reveal tipper's address to the recipient and possibly recipient's email to the tipper; Twitter says it will add a label  —  Sending its users to PayPal has created all sorts of problems that Twitter should have caught ahead of time.