I do similarly, but I use '/Development' only because I accidentally fucked up my '/dev' dir once using '/dev'

Unfortunately it's not as simple as self sponsorship. There's a long list of words that YouTube auto detects, and then those videos will get automatically demonized. Technically you can say pretty much whatever you want, but you cut yourself off from making any ad revenue and the YouTube algorithm will suppress your views as a result. I guess it's more like a coerced corpo-cucking.