愁=Sorrow , An evil , bad state
stupid parent may use it for a name
愁一"Shuich" (game,manga)
愁人"akito" ,愁斗"shuto",愁 "shu"(Cruel name WebSite)
片山愁 (comic artist)
If it is a real name, the child is poor......
I think that there are few people using even HN and the nom de plume
P.S
I found you in a thread of the J-Rock
The person of "VisualBand" tends to like a short name and a negative name.