Citations are still common in HN. You see them in bracketed form [1], [2], [3], etc. all the time. If you can't be bothered to provide even a couple of sources,

Citations are still common in HN. You see them in bracketed form [1], [2], [3], etc. all the time. If you can't be bothered to provide even a couple of sources, I wouldn't expect people to invest any time into "Just googling it" (which sounds a bit condescending).