They're called NOTAMs. We are all supposed to check them before every flight, whether we're flying a single seat microlight or a B767. I'm not aware of any distinction between classes of traffic - we're all required to check them.
It's nice and helpful of ATC to inform traffic - of any description - of a safety critical issue that affect them. But the NOTAM, and the Captain's duties, have primacy.
For a very small percentage of pilots, there's the flaw. They are being expected to be professional and to carry out their responsibilities.
