[xkxx]

> (also, this appears to be a particularly difficult culture to immerse oneself in, as by the definition presented in this article, having deep social interactions with a Hikikomori makes him/her less of a Hikikomori)

Anonymous communication doesn't count as "social interactions". Imageboards are where the hikikomori culture thrives. I doubt many would remain hikkis if they were deprived of internet access.