I completely understand what you say and the concept, but i cant agree,
VW didnt exactly have there head screwd on when designing certain aspects of the polo we all love,
Battery location, boost pipe routing, to name a few..
I undertand the breather aiding emissions, most cars have them going to the air box.
Even if it were for lubrication, spraying grease is a bit of a heavy alternative dont you think?
Also VW say a Glader is listed as a non servicable item, and only sell 1 O ring, when we all know thats not correct.
Im yet to find real evidence as oposed to hear say that the breather is a lubracant.
Id love to be shut up and proved wrong, but we dont all share the same opinion and belive what were told.
Peace x