Good stuff, thank you! Hope this helps a little. (I could send more corrections if you like as I read more.)

rethoric -> rhetoric

1 off -> one-off

ment -> meant

low hanging -> low-hanging

flag you many of those ticking bombs -> flag many of those ticking bombs for you

No matter which editor you are using, but you -> No matter which editor you are using, you

The best example in that StackOverflow is this one: -> [maybe delete this line? or write something else. I don't know its purpose, it makes no sense.]

a bunch of elements from one go -> a bunch of elements in one go

functions in shell -> shell functions

using user's input -> using user input/using the user's input

you can unset -> You can unset

lots of code you see around rely on -> lots of code you see around relies on

to thinking on creating -> to thinking about creating