Quite so, Cyril, and of course acting responsibly applies in both professional and amateur endeavours wherever there are consequences for other people. Furthermore, I'll mention the time-honoured virtues of honesty, integrity, respect and conscience, in this regard.
As a design engineer (retired), what I find alarming is to discover a predatory arriviste who seems to think the "fake it 'til you make it" approach is appropriate in technical endeavours! Anyone who appears to feel entitled not only to speak out grandiosely as if an authority on technical matters in which he is (often very obviously) not an expert, but also to smear the work, opinions and good standing of others who are far ahead of him in expertise, surely is behaving maladaptively, to say the least. One of the difficulties in addressing this arriviste-problem is that it has to be stopped through the interventions of others. Professionals in such matters all indicate that individuals with that type of personality disorder simply do not have the conscience to stop themselves - think of, for example, convicted fraudsters Elizabeth Holmes and Anna Delvey.
What I like and admire about this forum is the very high general standard of responsibility, honesty and integrity of enthusiasts, most of whom don't claim any professional technical standing. It grieves me to see an arriviste preying on these good folks.