Why is audio "base" misspelled as "bass"

I jump to the conclusion that someone that can't write properly is just lazy.
Sure that could be a cause, but you might be jumping past some of the real reasons. Ignorance is one, laziness too, but there are others. My mother was a spelling bee state champion, both my parents were English teachers. I've learned 4 languages, forgotten 2, and am learning another. But I still can't spell for crap, can barely type (as is obvious by many of my posts). It's just not a talent that everyone has.
 
And you have given us a good example. You are talking about multiple apostrophe, not what the apostrophe owns.

It is very annoying, because i can’t stop fixing them.

dave
First a comma without purpose, then "let's", "apostrophes", "its" and its should be "their". Stop the time.

Probably the "-" is wrong too.
I'm a proofreader, amongst other things. You did get it was a joke, right?
There's nothing wrong with using a comma as a soft pause in a sentence, like this one I've just used. There's also the Oxford comma (or serial comma) which comes in for a lot of either abuse or omission. The space/hyphen/space is a simpler way of typing an en-dash which is more popular in the UK and (soft pause) in is my eye (soft pause) more attractive than the US em-dash with no spaces. More of a house style thing and it's something I feel adds dramatic effect, as does this... (An ellipsis, not a bouncy [.] key).

You might like this to show that I really do care about grammar; a pedant in fact:
A woman without her man is nothing.
A woman - without her, man is nothing.