[aboringusername]

> Most people have an online profile, so what's preventing the interviewer/hiring personnel from just looking them up online?

Citations needed. What % of currently alive humans have an 'online' profile, how are you measuring that statistic? Are they engaging actively? How many have never had a smartphone, how many do not use social media at all?

Without sources and actual numbers it's hard to take your point seriously. MOST people do this on Hackernews, claiming "most" or "everyone" or "the majority of..." without actual data to back that up.