Hlstats rank is meaningless, it gives an arbitrary number of points for each action.
Our custom ranking system is an actual measurement of skill:
https://stats2.skial.com/rank/
We aren't putting in kd per name. I haven't heard of anyone finding it useful and it is very expensive in terms of resources For every kill, you need to search for the killer and record the kil there, then search for his current name and record the kill there, and then do the same for the player that died. That turns 1 log entry into 4 searches and 4 writes.
In the future session kd may be added. The data is already being recorded.