Statistics Erased

Hi there, just want to point this out. Started playing on the L4D2 servers some time ago then stopped playing for more than a week. When I returned I discovered most of the awards, achievements, etc I had earned were erased. Is this a bug or is this how the stats system works?

 

Hey can you tell us what's missing - your stats may have been wiped but fully recoverable.

 

Too be honest I dont know which stats were erased, but I am 100% certain that my achievements and awards were completely erased (definately had some versus-only achievements) . Actually now that I think about it, does the stats 'reset' after a period of inactivity? Anyway I'm not particually desperate to get these things restored, just a bit curious.

 

Yes after a period of inactivity