How did I discover the developer console?

Console blue frame appears randomly when trying to chat on PC

Developer Console, Roblox Wiki

Newlines are broken in developer console - Engine Bugs - Developer Forum

ahh, i enjoy roblox console. : r/roblox

Is :Chat() not working because of a windows 10 edition bug? - Scripting Support - Developer Forum

Migrating from Legacy Chat to In-Experience Text Chat

Adonis Console breaks ROBLOX Chat GUI · Issue #117 · Epix-Incorporated/Adonis · GitHub

Roblox chat messaging screwed up? - Website Bugs - Developer Forum

game.Players:Chat() not working - Scripting Support - Developer

I unfriended someone on Roblox, but I can still see her chat and