If we are talking about "community building" then why all the talks are about "answering mails" and "cultivating a community"?
There are other way and it may be easier for the companies (as opposed to the individuals): just create a competitive product. Android is as "open-source-hostile" (in the terms of discussed article) as they come (hidden development, no community involvement, most principal authors never answer questions, etc), yet there are vibrant Android-related communities. Why? Well, because there are over million new Androids activated every day.
Similarly with "pasture source": yes, project can be popular and even thrive when company closes it's development - but only if it's the only if other real alternatives are proprietary (and popular).
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