They only had 150 active users (despite 1000 signups), so choosing not to pay for the offering makes sense. I have the utmost respect for CERN as an institution — I want to make that clear. What I don’t love, however, is this trend that seems to be using a PR offensive of “price shaming” whenever contract or license terms change. I understand CERN is publicly funded and that it doesn’t have an unlimited budget. But I…
I didn't read it this way at all. I read it as "CERN was offered, and adopted, a free product with features A, B, and C. Later we were told that terms were changing and we could not longer get all of A, B, and C for free and in addition the free tier would include factors that were the cause of concern to some parties, as already described above." In other words, "no longer meets our needs so we will change." As it happened one of those "needs" wasn't really that well satisfied (only 150 people used it) but they didn't say that here so weren't shaming the product at all.
In general I consider it uncool when license changes don't grandparent in existing users as much as possible.