First, on record as respecting the Khan.
Second, many of the responses are petty and goofy and for lack of better word very non-self-aware.
However, med students and aspiring rad onc'ers... here be the Life of the Rad Onc. It is a lonely life. It is a hard life. People who aren't rad oncs will attack and judge and dismiss. And people who are rad oncs will tend to do that to you twice as hard!
They have a saying in the UK, "Don't put your head above the parapet." You can try doing so in business, law, the personal fitness industry, professional soccer, orthopedic surgery, and a few other things I can think of. BUT NEVER TRY TO DO THIS IN RAD ONC.