You’re conflating two separate questions: 1. Would 10M programmers writing 10M blogs become better programmers? and: 2. Would 10M programmers trying to find t

You’re conflating two separate questions: 1. Would 10M programmers writing 10M blogs become better programmers? and: 2. Would 10M programmers trying to find the time to read 10M programming blogs maintain their productivity, much less become better programmers? Perhaps there’s a benefit to writing a blog even if few or even no people read it.