I need to clarify a point just so that I'm not viewed as general bashing cause I never heard of this guy until the pokenchi debacle. The Donation thing is something I'm doing more research into but from what I've seen, he took part in a fund raiser to donate to charity, someone raised question if he actually did it though and I haven't seen any other "proof" to say he has.
The violation of Pokemon's legal material: He is selling or advocating the sell of Tshirt designs and Hoodie designs for profit using the Trademarked Logos for Sun and Moon. Pokemon and TPCi can, on legal grounds sue him for improper usage of their material due to this.
Getting paid to produce Youtube material is something Youtube does now, so this isn't really an issue, but from what I see, he also has a Patreon to get money from his followers directly on the premise of getting more videos. I don't know if he is hired by Youtube and paid for his videos like other Youtube Celebrities and groups. There was also an issue about him charging to watch the Pokenchi stream. I've seen people raise this as an issue, since I watched it through a different person I don't know if he did actually charge.
He's got a lot of bad remarks towards him right now and I do feel as if a lot of the info I'm finding against him is somewhat biased. With the short time I've seen his work, I can at least form my own opinion about him, and it's not a very pretty one extra research put the side.