"Fake personas" refers to the act of pretending to be someone else, usually online or in social situations. It means creating a false identity or character that is not an accurate representation of who the person truly is. Full definition
With the ability to create fake personas from anywhere in the world, online dating sites have become a haven for men and women looking for some poor soul to con. (digitalromanceinc.com)
The super sneaky ones can even create fake personas to defend or praise their work. (usedfurniturereview.com)
There are some dating services that use substitutes and «bait and switch» schemes to extract money for communication with fake personas, posing as pretty girls seeking love internationally. (blogs.elenasmodels.com)