It doesnt seem to recognize me fullfilleing the requirements for the achievements.

If anyone needs the gib hat, I have it and and will let people dominate me.

Playing sniper/spy is bad for your stats - most of the time you will loose stat points. You need to play medic to gain quick rank points :ugly

Na , i normally gain points with that ratio even if only a few, also i played scout this morning when checking that.
People might lose points on the map because most go for the achievements, but still with a good ratio especially if over average points should not drop.
Have checked for some other players i saw playing and all i saw have lost stat points on the map.
Not a thing to worry about if the map stays only for halloween anyway.

Kills per death is not how the stats work though, it depends who you kill

Not really encouraging then to stop ubers with airblast, to block enemy fire when protecting a sentry, etc.

Thats why you should ignore the stats before you turn into a worse player with higher "skill".

I was thinking about that too, but presents server ( and melee sunday ) is dead cause of stupid melee plugin.