check the link to AIP Ireland posted earlier.
http://www.iaa.ie/safe_reg/iaip/Publ...CK_24-2_en.pdf
This is the "declared" capacity for Cork in terms of what can be accommodated on each stand.
I would like to draw your attention to the notes 1 & 2 regarding responsibilities at the airport.
The markings are laid out so when the nose wheel is at the appropriate marking the wing tip clearance is within the required tolerance.
These markings should conform to international regulations.
Wishful thinking is not going to change it.
Are Cork Airport (I don't care whether ATC, ops or the janitor) allowed to put more than one aircraft on a stand?
Potentially you can do anything you want until regulations are applied.
My car can potentially do 120kph but should I do that in a built up area?