The OLC organizers have to assume that the participants in the contest will
not violate restricted airspace during their flights. ATC clearances are
necessary to enter certain airspace. The OLC team will not check if a pilot
has obtained the necessary clearance to enter airspace which needs ATC
clearance. This is not within our competences and responsibilities. However,
if we get to know that there has been an obvious violation of airspace then
we reserve the right to carry out special actions against that pilot and his
participation in the OLC. Of course every pilot is allowed to contact other
pilots in case of a potential airspace violation.

With the above on the OLC website it beyond me why pilots would post IGC
files showing airspace violations on the OLC

Gliders can not get clearance to this Class C Airspace

Are they normally kicked off the OLC ?