It depends on how you use Facebook and instagram. These days employers and networking people look at Facebook and Instagram accounts, what you like and share is no longer just an innocent act but it is part of the "social" profile you are presenting to "the world". All the "friends" ( whether they are your real friends or just someone you add at work, or the people you met at the church, or someone you network over a party) got a beep of what you like and share, and they cannot be taken back. These likes and shares are also being data mined.
You need to manage it - There are people who like and share certain things ( this is not firearms related) and i certainly have a new "perspective" of what some of my "friends" really are. The pattern of stuff you like and share builds a multi-facet profile of you - you like certain political views, have a tendency to like "violent" sports, like all the posts whenever someone gets beat up in the street....and maybe one day you get into a scuffle with someone, and then your FB profile got pulled and used for supporting the prosecutor portrayal of your personality.