On the subject of Grammar: English Grammar is constantly changing - it is in a process of changing right now.
What was right in Victorian times is not right now. Pronunciations have changed from even the 30s - and going even further back there was the 'Great Vowel Shift' (look it up) - where words were suddenly pronounced differently (but the spellings didn't keep up).
What is acceptable in e-mails and texts will be incorporated into the language - this is normal evolution of language. We accept what sounds right, and that changes with time.
Sometimes rules of Grammar don't make sense in normal speech:
As Churchill once famously put it:
From now on, ending a sentence with a preposition is something up with which I will not put.
'Timeously' is a word that means 'Timely' in South Africa, 'Just now' has different meanings in different parts of the world. 'Do the needful' is good English for the majority of English speakers worldwide - but doesn't sound right to those living in the UK.
So, whilst I do enjoy pedantry - one has to keep in perspective. 😉
Cheers,
Shafique