Bust In Silhouette on Facebook

What it signals here

reaction meaning

Not typically used as a reaction; more used in comment text.

comment use

Older users may use it to represent 'a person' literally or tag someone unnamed in a comment.

boomer interpretation

Likely interpreted straightforwardly as representing a person or user profile icon.

group use

Used in group posts to reference an unnamed member or anonymous tip, like 'a 👤 in this group said...'

See it elsewhere