ST. PAUL, Minn. — My tech-gadget giveaways have made me a neighborhood rockstar. In a “gratitude post” last year, I gave thanks for items I obtained from Buy Nothing members. Bonnie Harris of St. Paul said, “Last fall I completed my transition to owning practically zero things and moving in with my partner. “I don’t know a ton,” said St. Paul admin Georgia Nesbitt. Seems legit, I concluded, though I’m not abandoning my Facebook group and “All Star Contributor” status anytime soon.