Quote Originally Posted by waxwing
a lot of native speakers make way more mistakes, especially in spelling.
I agree. In my experience, most native English speakers write poorly in English: poor spilling and poor grammer They don't care to take care. And they don't bother to check their spelling. In contrast, foreign language speakers often put us to shame. Maybe it has something to do with the fact that we (in England) have placed less emphasis on learning another language than in Europe, Eastern Europe (wherever that is), the Russian Federation and, well, everywhere else! In learning another language you first have to understand how your own language works. The consequence is that your ability to use language, in general, improves.