I agree, giving should be done in the dark and not something to advertise, but in this instance this young man has inspired many to offer to help the less fortunate.
I'm not 100% sure but I do think that the videos are to inspire and not to make himself look good nor to put money in his pocket.
Often times people give without the expectation of a return on their giving.
A case in point:
3 years ago a car hit my son and he died on the spot... Identifying the body at the morgue was a bit rough as he was well past banged up.
We had a celebration of life funeral and, as is customary, people came to our home afterwards to share a meal, lift our spirits and generally take the sadness out of our home.
One of the people was a pastor at a different church than the one that performed that aspect of the funeral and it is customary to tip them as tehy do not get paid for the actual service.
I had no idea what to tip, and was certainly not in a position to think that though at the time so I asked the pastor what I should tip.
His response, "I'm not in this for the money, so I would not accept anything, but a couple hundred dollars is what people generally offer".
He is in his profession to contribute and not consume and I believe this young man is as well.
I'm so sorry for your loss; no one should have to go through something as tough and traumatic as that. I hope that with some time passing, the pain becomes a bit more bearable.
Regarding the topic at hand, I have to say I disagree. I see many youtubers creating similar content, giving away money, food, or toys, and MONETIZING those videos. In the end, if the expense on "gifts" is $100 and the revenue from that video is $1000, it still seems like a business to me, and furthermore, it seems dishonest.
This particular channel, I just looked into it a bit more deeply, and practically all of its content revolves around this theme. And honestly, there are several details that don't sit well with me, such as the silly games of "I'll give you this envelope containing a surprise and then offer you money to buy it." All of this without pixelating their faces and with people in situations of extreme poverty. It seems disrespectful, childish, and several other bad things.
There's a channel I often watch called White Soft Underbelly, where they interview marginalized, ostracized, and generally different people (homeless, criminals, prostitutes, etc.), and I've always thought it would be great to have a channel like that. But the difference would be that instead of paying something to the interviewees like 50-100 bucks—as I assume the owner of that channel does—I would give them a wallet, with an associated card so they could buy and withdraw cash, and I would publish that wallet in the first comment of each video, so anyone who wanted to donate something to that person could do so directly and without intermediaries.
Something like that would seem fair to me, but it makes me really angry when I see youtubers giving away a few hundred just to create content and polish their image.