I’m the author the photo you’ve mention in your message. I’ve just found by accident while doing a search in Google. Quite a surprise for me.

Anyway thank you for the link

As we advance in a second language, we learn how to understand the language before we can speak it proficiently.

Then, when the speech finally begins to flow, we believe we are conversing fluently with the native speakers because they seem to understand what we are saying. In reality, we are basically understandable, so we can communicate, and to be polite, native speakers will give only minimal corrections. (ie, followers guess at what an ambiguous lead means, and leaders allow followers to force a move that were not intended, and neither will generally correct the other).

The ugly truth comes when you begin to realize all the errors by listening to other conversations and taking the language classes. All of a sudden, you realize there is another tense you never knew existed (you just thought all the native speakers were saying the word wrong…). Now you start back at the beginning relearning the basics (no analogy-translation needed here). I would imagine this learning-cycle continues indefinately (since I’m a native English-speaker, and I still learn something of language on a regular basis).

The one benefit of little phrases is that if you can find one that is short and sweet and unique to you, it can embellish your dialogue. When everyone else starts doing it, it’s time to drop it and find a new one. On this point, no one else is allowed to use, “cool beans.” It’s mine!