I have only one person who wasn't native and used Polish better than 99% of native speakers. I was shocked to learn he learned it being 30+ and used it mainly for his lecturers on philosophy. I used to seat on these lessons trying to catch fucker on grammar but he did not make a single mistake. Lets call him X.
He was German and for that I assumed German people has some special language abilities unknown to the rest. I then started to read Dresden's posts and realized X, the language master philosophy professor may exist only thanks to Dresden's inability to master even his native language so balance can exist.
For someone's comment on Polish being retarded for being so complex - it's partially true. There are many factors which decide why language keeps its form or not - simplicity is not the only one. If we would prefer easy languages Esperanto should be in global use.
Other thing is how difficulty of languages had been measured. Typical Polish citizen uses around 300 words to communicate daily. To some degree You may communicate without knowing grammar and be understood (like in most of languages).
Also, how many of you know English has been simplified in the past?
Polish grammar - Wikipedia, the free encyclopedia