its very annoying when you unlock something like psychopath rank or Set your Achievement to Hobo etc Showing off your achievements is a good way to show players that you have 1000 hours playtime or unlocked a new rank like godfather on a server you arent even a godfather on or showing that you have 10,000 kills
I believe this has been glitched for a long time and many players who have these special ranks don't have them shown. At the same time, I don't think this is a priority as there are other more important issues that need to be worked out.
The achievements are some other things are currently broken, we are working on fixing them, it isn’t a big priority currently though.
Achievements would be nice, but there are a lot of other things on the Devs priority list. Also, people can just /stats you.