Hahah yes after travelling for the past year I can second this...
I've met so many people on the road who speak English as a second or third language, and their understanding of the language surpasses many of those from back home!
I am learning Spanish and can actually say the same the other way round. Many times when I am texting Spanish speaking friends, my grammar is much better than theirs.
I guess sometimes we get lazy with our own native tongues and forget the importance of correct grammar, well-structured sentences and clearly presented layouts.
An important comment @crypto-wisdom - a very valuable addition to an already very useful post... thank you both!