PS. Buddy, if I may take some liberties and give you some advice: I try very hard not to be critical but really pay some attention to your punctuation. I realise English is not your first language but predictive texting and the usual iOS bug of putting comas a space too far is really making your writing incomprehensible at times. Which is. Shame because you have some good and interesting points to make.
I am not sure what your beef is with this guy, but his writing is hardly incomprehensible.
Why? Because they, i think, want the laptops to be the only Macs avaiable while axing the desktops.
Nothing wrong with the commas here, apart from the spacing, which isn't exactly a major issue. There are two spelling mistakes, but there is nothing wrong with the punctuation.
The real question is, why are they delaying the 13"Macbook Pro Retina too?
It would be more correct, in this case, to change the comma to a ":", but, again, this is hardly the end of the world, nor does it make the post unreadable.
So now that you've pointed out the speck in your brother's eye, let's check how bad the plank is on your side.
I realise English is not your first language but predictive texting and the usual iOS bug of putting comas a space too far is really making your writing incomprehensible at times.
You're missing a comma between "language" and "but".
In addition, the sentence could do with a comma between "texting" and "and", and another comma between "far" and "is", like so:
I realise English is not your first language, but predictive texting, and the usual iOS bug of putting comas a space too far, is really making your writing incomprehensible at times.
The sentence would also flow better by inserting a "that" between "realise" and "English", if you want to show off your English writing skills. By the way, a coma is not a comma. These two words have very different meanings.
Which is. Shame because you have some good and interesting points to make.
Perhaps you should follow your own advice?

My writing is not perfect, but there is no need to be the grammar police, especially when you're giving out awful advice.