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US immigration agencies read visa applicant's social media
(www.theregister.com)
This is a most excellent place for technology news and articles.
That doesn't matter though, cause you have to provide all your social media identifiers - so it doesn't matter if your handle is real or fake. You can choose to say "none", but then you'd be asked about that by a visa interview officer, and they could reject your application for being suspicious. On the other hand, if you really had an account on a mainstream social media site, and you used your real device fingerprint to access it at some stage, they could find out and you'd never be allowed into the country.
Source: https://t.ly/uBxvt