finsta

 finsta  is a portmanteau of fake and Instagram, a typically private pseudonym account that only a few close friends follow, and used to post more informally and frequently, without any of the typical Instagram posting conventions; as few IndieWeb are private, this may be worth exploring. Contrast with rinsta.

Articles

 * 2021-09-30 NYTimes: ‘Finsta,’ Explained / What is it, really? And can one commit to ending it? "“Finsta,” a slang term, is widely accepted as a contraction of “fake” and “Insta” (short for Instagram). It is neither an official designation nor a type of account offered by Facebook."
 * 2021-10-01 NYTimes: When an Angry Old Pol Shakes His Fist at the Internet "Finsta is slang for a secondary Instagram account created by someone — usually a young person — to share privately with only some friends (and perhaps not with parents)."