▶️🔔💬

#youtube notification #comment reply #comment notification #youtube bell #new comment

👇U

#pointing down at you #you below #comment reply #indicating you #this user

💬↩️💬

#reply thread #comment reply #discussion thread #comment chain #nested comments

⤵️💬✍️

#comment reply #post reply #forum reply #thread reply #social media reply #write comment reply