They have sent me various "goodies" like that over time I've been a person right here (but I am surely not an "employee" - I have never even been a moderator on any SO site).知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。llylly 10.7k2525 silver badges4343 bronze badges Increase a comment  Get r