I'm a YouTuber. Currently at about 9k subscribers which, while not even close to top-tier, is nothing to scoff at.
I got into doing tutorial videos years and years ago. This was because when I first got my PSP I wanted to hack it. Except, all of the videos were shit-tier and involved people slowly... slooooowly typing on notepad (and erasing all typos) while crappily recording their screen and having loud, obnoxious, background music.
So the very first thing I did when I figured out how to hack my PSP was upload a series of videos on how to get PSP emulators. The videos used MY voice, no background music, and were noob friendly and straightforward. 2 years later and I made a tutorial on how to get a PS1 emulator and the video blew up (Look up "how to get ps1 emulator" on YouTube, #1 result baby.)
Since then I made a bunch of other tutorials on how to get emulators and then I sprinkled in some Let's Plays (I'm also first result on Let's Play Wand of Gamelon). In addition to emulators, I explained basic things in videos like how to edit in Sony Vegas, how to jailbreak an Iphone, how to put a new HDD into a 12gb PS3 without a caddy, and how to extract files. I also have a couple of just random videos, like one where I go on a date with my new Wii U. Getting a bit more technical, I made tutorials on how to hack the Wii and Wii U, how to get Gateway and CFW working on 3DS, and then how to get Loadiine working back when all of the information was technical mumbo jumbo that the casual user couldn't understand.
Ever since becoming a contributor for GBAtemp I've been cutting back on the hacking videos and focusing more on reviews and gameplay videos. The tutorials ultimately get the most views still, but really I've always just uploaded what I wanted. So my videos can get anywhere from about 100 views to nearly 600,000 views. All of them are fun for me though and I do genuinely feel like I'm helping people. The feedback for the Loadiine videos from GBAtemp members made me feel especially good.