Planning social engagements with friends. I can easily see who is going, let organisers and everyone else know if they want to that I may not make it, as well as see if there are other engagements that I&#x27;ve already agreed to go to.<p>I could do this with email and calendars, but I don&#x27;t know 95% of my friend&#x27;s email addresses. We talk over SMS and Facebook Messenger. If I wanted to find another one of my friend&#x27;s I just search for their name, and if they have privacy settings set to only allow friends of friends to search for me - that&#x27;s OK too!<p>I don&#x27;t have to ask a friend for their email address, or their phone number and then ask that person for their email address. I don&#x27;t have to phone or SMS people to see if they want to come, and I have an easy way to track it.<p>Sure, we all got along fine before social media. But Facebook has made planning social events ridiculously easy.<p>I haven&#x27;t posted on my wall since 2013 and none of my information like age, email, phone number, etc is public. Sure Facebook has access to all sorts of conversations I&#x27;ve had over the years, but so do my local ISP&#x27;s and data centres.<p>For anything that I&#x27;d truly like to keep private, I use PGP, OTR or chat in person.