"On the other hand there are virtually zero-fault small projects that no one is interested in because they are finished, bug-free and the author/maintainer would like to keep it that way."

Interesting that this statement did not trigger the usual mindless, meme-like HN syllogisms:

"Software is never finished."

"All software has bugs."

They try to discredit the truth that such small projects exist and might have something to offer.