I won't deny that there are people who don't seem to spend much time taking care of themselves, but they're not very common (at least in my experience). Just a few at cons that get quite a few noses wrinkled at them.
We all know you haven't showered or shaved in at least a week.
We can just have a normal conversation w/o anime pictures. I know it comforts you to post gifs of your favorite cartoons when talking to people you don't know, but irl you will need to learn the basics to holding a normal conversation.
Shaved, yeah maybe a few days. Showered yesterday morning. Then again, I'm sick.
Considering I'm in sales, and knocked on random people's doors to get them to drop tens of thousands of dollars on home improvements to someone they haven't met before, I'd say I got the human interaction thing down pretty well, actually. It's kind of how I make a living.
**** actual weeaboos that spout random Japanese words, try to shove anime down people's throats when they don't care, and worship Japan as some kind of holy, perfect place, though.