I agree with this - if you're a student or just starting in the workforce. However, a lot of companies in the industry have IP agreements that prevent you from sharing code in public - and there have been cases where companies have told employees to stop work on their personal projects/stop contributing to open source because of this. Some even restrict public comments to social media or participation in online discussions.
Now a lot of people, including me, have a Github and contribute to open-source using a anonymous screen name. However that also means that prospective employers can't use this to find me, and that I can't really mention these projects in a job interview.
I'm just surprised that no one has mentioned this here, as I've seen quite fruitful discussion on HN before on such agreements and am surprised this hasn't came up. I know some employers that would definitely tell you to cease work on your (publicly visible) Github projects once you are hired if you mentioned them in your interview.
Now a lot of people, including me, have a Github and contribute to open-source using a anonymous screen name. However that also means that prospective employers can't use this to find me, and that I can't really mention these projects in a job interview.
I'm just surprised that no one has mentioned this here, as I've seen quite fruitful discussion on HN before on such agreements and am surprised this hasn't came up. I know some employers that would definitely tell you to cease work on your (publicly visible) Github projects once you are hired if you mentioned them in your interview.