On Micro.blog there’s a debate about whether Likes are harmful.
Thanks to protocols and W3C recommendations I can like, bookmark, annotate anything on my own site. I can send out a notification I liked what you wrote. You can decide to receive this notification, moderate it or publish it on your own site. That’s up to you. As it is on Micro.blog. Whether that’s harmful, I don’t know. Are hitparades harmful? Top 10 lists?