Reading the help does not help all the time when starting from scratch even more for non native English speakers
Well, you don't have to. You already have your IDE and Vim is certainly not a hard requirement for your job anyway so you can keep using your trusted IDE and learn Vim on the side, properly, at your own rhythm.
> So I “only” need to learn vim core editing syntax.
You can also do that _within_ your IDE.
> Reading the help does not help all the time when starting from scratch even more for non native English speakers
You would know this is nonsense if you had actually opened it.
After spending way too much time configuring my own vimrc and reading others', I'm happy I've found this community a driven package. It's better, smarter and more polished than what I could have built myself, and I like the defaults.
So, in fact, it also suits the not-so newbies who want good dedaults and openness for configuration.
It didn't have to be that way.