They weren't "scolded" for cross-posting (or whatever you want to call it); they were scolded for not mentioning it was cross-posted. By mentioning it, readers get the benefit from the replies/answers at both locations, and it also helps avoid needless (duplicate) work.

In reply to Re^3: Parallel::ForkManager takes too much time to start 'finish' function by ikegami
in thread Parallel::ForkManager takes too much time to start 'finish' function by ohadk

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