User blog comment:Shane Star/Ruby x Weiss x Blake x Yang/@comment-3257939-20150107150453

This left me confused at first but I'll try to write a reasonable answer:

t's called shipping. It's one of the guilty pleasures of the internet. There are even fanfics where Weiss somehow gets Ruby pregnant which obviously doesn't make any sense but that's what people like. I honestly don't find any sense in the yuri ships but I won't judge it since that's a normal thing in the internet. Especially in the RWBY fandom since some people have crack ships like RubyxCrescent Rose and I even saw a fanfic about it that was M-rated. You get the idea.

No need to research anything. I don't think you can find answers for it. Believe it or not, that's just what people like and it's pretty normal and acceptable.