I was idly browsing the back catalog the other day and I noticed the same phenomenon (sure are a lot of Pspens tees affected by this, eh wot?) but so far this is the only post I've seen that seems to reference it. Was this noted in public or was it just quietly swept under the rug?
Funny, it's almost as though using other people's intellectual property comes with risks that probably involve you losing if they find out. Shame no one thought of that earlier.