@Kyonko802 i saw the list of files, looks like the vast majority of it is typical stupid porn name shit. there are some that have jailbait and lolicon in the title that look pretty damn sus, but it could just technically be in that same vein.
regardless of whether this is all technically above board, it doesn't look good at all and he's still fucking retarded for 1) not knowing how notepad works 2) looking at that shit on his main PC as a big streamer especially 3) going to weird spam link paid content sites instead of just looking at gelbooru or whatever.
that last point is something i've seen an unfortunate amount of times from various friends over the years. people will have random ass "hentaihotgirls.com" spam/scam websites that they go to that steal content and sell it and plaster ads everywhere and shit. or like people who go to those "watchfreemoviesonline.com" websites instead of just torrenting. turns out, the internet wasn't made for everyone.