Principles

All ideas have to pass through a coselection process that will lead to the survival of the fittest.
Thus, let's make clear that criticism is always good (as far as ideas are concerned).
Heraclites said : "war is the father of all, and the king of all", and there are many reasons to think that he was right.
Thus, harsh criticism is good too, as far as it is sound and fair.
Ad hominen criticism in not allowed
Therefore, even patent egotism, hubris or megalomania are not sufficient reasons to discard any single idea.
Anyone is welcomed to believe in (the truthfulness of) her/his ideas.
Enthousiasm is usually more productive than despair or doubt.
So anyone is invited to contribute enthousiastically with awareness that it is good to leave to others some opportunities to criticize our proposal.
In other words, our necessary self-criticism should not be animated by a desire for perfection since this could lead to inhibition and self-sterilization.
So, go ahead and let others help you have a clearer view of what you think.