It is self-claimed manager of this site.
Someone has posted some tweet in several foreign languages and I thought we were attacked by a virus (a computer virus, not a corona virus).
However, when I looked closely, I found a few “!” marks in the usual place every time in those tweet. So I thought this must be him and tried google translate to find out what is written. As conclusion, they are not important at all.
Fortunately, it wasn’t a virus, but it turns out that a weird guy still inhabit this web-site, unfortunately.