A bit of contrary anecdata:<p>I&#x27;m throwing a party on Sunday. I don&#x27;t throw parties very often. The last time I did was a little over a year ago. I created a Facebook event for parties as I usually do, and about half the people I invited didn&#x27;t even see the invite (Facebook helpfully tells you who has and hasn&#x27;t seen such things). So I had to chase down these people through other means (texting, hangouts, and yes, FB messenger). Last year when I did this, pretty much everyone saw the invite.<p>I&#x27;m not sure what changed. Perhaps it&#x27;s notification fatigue, perhaps some quit or curtailed their use of Facebook. But it kind of sucks from my perspective, as there is no clear better alternative. I do not know the email addresses of all my friends, and people aren&#x27;t necessarily responsive to email either.<p>Demographic here is late 20s-late 30s, in the Bay Area.