Think like your enemy. And if one already does more than thinking…

But this is not generally so, I have read a lot about anti-virus experts and they all stressed the point you do not have to write viruses to be a good anti malware expert

Yes, I’m sure you are the only person here who “read a lot”, and the rest of us are ignorant on such matters… I would say one has to not only read (or better yet hear personally what these people say) but also THINK.

Personally I think there is an element of political correctness in all this, and given the current climate even if one has dabbled in such things, you hardly expect them to tell the world they did so. Particularly if doing so gave one an edge , one would hardly be telling their potential rivals/competitors …

I for one never felt the urge to write harmful code, to analyze it, yes, but that is quite another kettle of fish

That probably because you lack the capability of writing code in the first place… lol.