White Square Button on Facebook

What it signals here

reaction meaning

Rarely used; if it appears in comments it is likely accidental or used by someone testing emoji responses.

comment use

Older users might paste it in comments without context, not knowing its purpose.

boomer interpretation

Likely interpreted as a formatting artifact or a broken image placeholder rather than an intentional emoji.

group use

Sometimes used in marketplace or group posts as a bullet-point substitute or visual list element.

See it elsewhere