I personally consider "active and/or daily Facebook/social media use" (e.g. mindless scrolling as escapism, intense FOMO fueling continued use, or a desire to uphold sense of identity) a red flag. to each their own.
Why the downvotes? This is a valid discussion topic.
I recently went on a date where the girl told me she nearly had a panic attack when she couldn't find me on Facebook or anywhere else while waiting at the venue. Given we had met briefly at a bar only a week before the check was warranted (IMO), and given the positioning of Facebook in her life and many others, it was the tool she relied on and was disarrayed by.
Sure my case is anecdotal but I do not believe it is unique. Facebook has forced itself to be a single point of failure in parts of our culture, they did it intentionally to make money, and we should acknowledge it.
I have no social media accounts at all and never have. I thought the very idea of facebook was creepy when it launched and I've not changed my mind since.
Facebook provides a public log of years of your posts. A quick way to get to know someone. To figure out if you should trust them. It's far from perfect but neither are social security numbers.
Services like Airbnb's use your account to verify you aren't a spammer. I have heard of landlords and employers asking for it as well. If you don't have it you are undefined.