(Who are those who think nobody needs to know and this site does not need any help ?)

It was Anonymous Monk that said "You don't need to know" and you need to exercise judgement when evaluating responses from Anonymous Monk.
Sometimes he provides remarkable insights and, at the other extreme, he sometimes provides complete and utter garbage.
Often he provides something that is neither a "remarkable insight" nor "complete and utter garbage".
I think that, in the instance you've linked to, he was providing something between garbage and a joke. (There was a smiley, after all.)

The question of whether this site needs help or not is a curly one.
For me, after 12 years I've learnt to find my way around it pretty well - I therefore personally don't see a need for anything to change.

I always assumed that the drop-off in attendance here was due to the declining interest in perl, but if there's something about the layout or culture of the site that's deterring people from joining up then I'm all for fixing it if such is possible.
It's new attendees like you that would be most aware of these sorts of shortcomings. Old regular farts like me can only see that it's pretty much the same as always - which is something that we probably also take comfort in.
What, specifically, do you want to change ?

Cheers,
Rob