Yay! The weekly smug grammar bashing thread. I've been waiting for it.
If, OP, approximately 25 years into social media forums and the usage of standard abbreviations within said forums, you are having difficulty understanding them, might I suggest you may have comprehension issues? Have you ever tried reading more?
There is also, of course, the fact that this is a parenting forum, not an English language test. There ARE posts with poor grammar. There always have been. I'm an English teacher in a school, I'm not on Mumsnet to belittle people who may not have had the education I have.
It might also be worth asking yourself the question "the person using grammar incorrectly- why are they doing that?" Choose from one of the following:
a) they're thick
b) they haven't had the English language education that others have had
c) they have cognitive learning issues
d) they're not sitting an English grammar test right now, so what does it truly matter?
After you've answered that one, ask yourself this one.
When the person/people you've started a nasty, belittling, smug thread about see your nasty, belittling, smug thread, do they feel:
a) thankful that such a clever, superior being has pointed out their mistakes
b) humiliated
c) determined to do better next time or face detention
d) that you're a nasty, smug sufferer of both Muphry and Duning-Kruger.