Thirteen pages, and I've laughed my way through all of them! This is a hilarious thread that takes me back to my training as an English as a Foreign Language teacher. We had to dissect grammar just to qualify for the course, then argued our way heartily through various pronunciations and word usages as we practiced creating phonetic sentences for our students. Mind you, we were a diverse group of speakers hailing from New Zealand, England, Canada and USA with regional differences thrown into that mix.
Here is what I hear happening that makes me fear another grammatical shift - people using "is" instead of "are". And I hear if often. "There is lots of reasons why to vote for (candidate)" or "When's people showing up for the party". Most often it's used as a contraction.
And, I worked with an English teacher who banned the word "got" in all forms from student writing. His fervor developed an appreciation in me for the more descriptive alternatives and I feel an inner cringe when I get lazy.
LOLOL - Lots Of Laughing Out Loud - ha, ha.