Since when have Mafia players taken the role playing that seriously or followed it to the letter? Players have been ignoring or twisting the role play aspect to whatever they want to do.
Pretend you are a YouTuber yourself and role play as BeautifulShy Bakes in which you have a crappy instructional cooking channel on YouTube with terrible recipes or instructions and advice. You could be like the Swedish Chef from the Muppets now broadcasting from home.
Don't get hung up on real people. YouTube is like the modern version of terrible public access TV on cable. Imagine any of those as a possible springboard for role play ideas and don't worry about mimicking a real life person just the public perception of what bad YouTube means to you.