Doesn't work for mine. I just have "Days Read" (no "Years Read"). My "Days Read" is a small number and dated 2009, but I was posting comments in 2007. All of my achievements are from 2009.

In the early culture your slashdot id # of digits was bragging rights, at the time I was proud of my 6 digit, but the culture there is very toxic now and all it means is I was older or an earlier "lucky 10000". Status seeking is a childish endeavour, but in my defense I was a child.

My 10 years read is in 2003, which would mean I started reading in 1993, but Slashdot says they only started in 1997.

I do have an id in the 7x,xxx range. Not sure if I can work much out from that.