jm 7·ÊcÁ&cß¼ØÛrdUpê^i³LȾ"£ÚL£Ty for the links. A good quote from the first article: Some (including Wuille) worry that people will use this new transaction type for storing messages or memos.
https://whatsonchain.com/tx/6e0c85876810b0f9adfd9f06db50cb6cd182138d3bb927f4ea62efdfaa123e39