I said what I said due to experience, which I probably should have clarified. I, too, have almost no internet presence under my real name. It has come up in interviews. I didn't say it prevented me from obtaining employment, but it came up is all. In this day and age, it is an outlier to have no social media/internet presence, even though I'm sure "plenty" do (which is small relative compared to the working tech population at-large).