[bassman9000]

seemingly too lazy

Some people aren't in the mood for extra curricular activity after working +14h a day. They rather unwind, and be productive the day after in their not-pushing-to-github jobs.

[onebot]

And here you are on HN. It is hard to buy this argument. Instead of reading HN for a week, hack out a little app and toss it up on GitHub. I am almost certain that is more valuable for you than opining here.

[whatyoucantsay]

Another factor is very large employers having policies regarding open source and requiring each OSS contribution to go through legal.

HN, particularly under a pseudonym, is somewhat more accessible for those under the watchful eye of $BIG_CORP.