does texting hurt your grammar?

cannot pin (in pinterest) the whole length of this infographic, so i put it in this blog instead.
my answer would be: yes! since:
1. english is not my first language
2. i prefer to learn english from any sources, like: movies, songs, and internet; than textbook. those non-textbook sources give me bad grammar (i guess).
how bout you?


 

source: http://www.onlinecollege.org/2013/02/12/does-texting-hurt-your-grammar/