> he's just going for internet brownie points. It's just an attempt to squeeze a bit more personal benefit out of your (now-ended) employment.
So, many researcher types (and not only them, but also including many of us) are motivated by — find it personally rewarding at a psychological level — to share their thoughts in a dialog with a community. They just find this to be an enjoyable thing to do that makes them feel like they are a valuable member of society contributing to a general collaborative practice of knowledge-creation.
I hope it doesn't feel like I'm explaining the obvious; but it occurs to me that to ask the question the way you did, this is probably _not_ a motivation you have, not something you find personally rewarding. Which is fine, we all are driven by different things.
But I don't think it's quite the same thing as "internet brownie points" -- while if you are especially good at it, you will gain respect and admiration, which you will probably appreciate it -- you aren't thinking "if I share my insight gained working at Google, then maybe more people will think I'm cool," you're just thinking that it's a natural urge to share your insight and get feedback on it, because that itself is something enjoyable and gives you a sense of purpose.
Which is to say, i don't think it's exactly a motivation for "personal benefit" either, except in the sense that doing things you enjoy and find rewarding are a "personal benefit", that having a sense of purpose is a "personal benefit", sure.
I'm aware that not everyone works this way. I'm aware that some people on HN seem to be motivated primarily by maximizing income, for instance. That, or some other orientation, may lead to thinking that one should never share anything at all publicly about one's job, because it can only hurt and never help whatever one's goals are (maximizing income or what have you).
(Although... here you are commenting on HN; why? For internet brownie points?)
But that is not generally how academic/researcher types are oriented.
I think it's a sad thing if it becomes commonplace to think that there's something _wrong_ with people who find purpose and meaning in sharing their insights in dialog with a community.