"Silver spoon" means he was born rich, from old british saying "born with a silver spoon in his mouth"
As for creators going 'radio silent', i know it from own experience (not only creative) - if you are doing something hard and for a long time, periodically you just grow sick and tired of it, even if it earns you well and you are doing a good job. At this point, you do not want to even think of continuing doing it, you become unreponsible and unresponcive, and just need to take a break, If the thing you are doing is of creative kind, it only makes things worse.
So, it is not good for a developer to go silent, as people are sponsoring him and he could at least tell them a word... but i understand how it happens.