It no doubt takes a lot of work to become something on youtube. You HAVE to be good at what you do and consistent with content. Matt is very good at what he does, and it pays, he has far more subscribers than any other sledder- over twice that of Burandt. He has built a brand and a pretty incredible following.
His channel has over 34 million video views. I did a little research... sounds like average channels make from $5-$10 per 1k views but anywhere from $1-$30.
$5= $170,000
$10= $340,000
Add in a ton of merch (probably pays the taxes on the above) and some sponsorships.
"Daddys money"
Who knows maybe he's on the lower end. Regardless I find it funny when people immediately make daddy comments when someone is successful. Typically runs out the mouth of people who do the bare minimum at a 9-5 and live life being a butthurt little bitch because they have yet to magically get rich. Rant over.