This ignores the (rational, if naive) cost-benefit of a complaint about someone else's work: if they accept your complaint as valid, then you get what you want for 0 cost. Additionally, since they agreed it was a valid criticism, in the creator's view the product was improved, overall. This is globally a very efficient scheme, because there is often a significant barrier to "showing" an alternative solution, particularly if the solution is the culmination of a lifetime of study.
When criticism is ignorant, purely selfish, or otherwise not constructive, it becomes a problem. And I don't think FOSS leaders should have any problem expressing this sort of judgement without anger or ill-will.
When criticism is ignorant, purely selfish, or otherwise not constructive, it becomes a problem. And I don't think FOSS leaders should have any problem expressing this sort of judgement without anger or ill-will.