Did I break some unwritten poker rule with this bet?

#327456803 Royal Freeroll MTT

I consider it just a good bluff of a Straight Flush


I wouldn’t give too much thought to someone getting all butt-hurt over being bluffed off a hand. I saw the response from the next hand and laughed. Obviously has no idea what he’s doing but picked up some phrases that he throws around incorrectly and hopes no one will notice. Nothing wrong with using late position to make a play at a pot no one had shown any great interest in up to that point.