Holy! How did you pull those letters off, Caucasus? There's no need to remember the code to make lively notes anymore with those.
Open up the Character Map on your computer, if it's Windows. I don't know what font Danbooru uses in notes by default, but Arial has a good wide selection of generally-compatible characters. The fancy ones will be near the bottom. After that, have a look into "alt codes" so you don't have to copy and paste them.
Welcome to my naval base.▓██▓▓▒▒-san!!I always p࿆u࿆t࿆ you࿆ through a lot of trouble.Nice to meet you, ▒▓▓████▓▓▒.You'll quickly grow accustomed... ▒▓██▓▒'re all won࿆der࿆f࿆u࿆l chil࿆d࿆re࿆n...It's alright...Please, hold yourself tog࿆e࿆the࿆r!!