A few reasons:

Altruism: They might find it rewarding to share.

Tit for Tat: They might hope that if they share, others share with them

Pride: They might think they get known for their work, their code could be used by many people

See it this way: If you sit around a fire and are the only one with a pack of beer, would you share? Now if you share source code, the situation is even better: By sharing you are not losing anything, you still have your copy of the code.

In reply to Re: Why do People like larry or David Cross write free language and distribue by jethro
in thread Why do People like larry or David Cross write free language and distribue by romy_mathew

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