"Blurring of meaning"??
A nice way of saying it's wrong?

If one hands someone a package that one wishes to be transported to the post office then one would say "take that to the post office", no "bring that to the post office".
On the other hand one could say "Meet me at the post office later and bring that with you".
Quite simple really.

Interesting to see MWDEU and Shakespeare mentioned in the same sentence.
Shakespeare's works are not noted for accuracy, but are oft quoted as being so.
Perhaps a few examples showing the play, act, and scene would enable such assertions to be examined.
It is unfortunate in language that common usage of an erroneous meaning, spelling, or pronunciation, all too often becomes the norm.

You guys are really amusing.
It all comes down to the poor working class being browbeaten by the aristocrats and scholars?

ROFLMAO

I think it is time to explode the myth that the hotchpotch of perverse pronunciation, suspect spelling, and garbled grammar that Americans so arrogantly proclaim to be correct English is anything but a corruption of the language.
Call it what you will; Amerish, Americanish, Amish; it is not English.

@ceegee

An acronym is a pronounceable word which may be formed by initials or parts of other words.

It is sometimes wrongly applied to any set of initials.

@D. A. Wood

"many such people think that they should do things according to their whims, rather than bothering to find out the real way"

Well said!
You have crystallised just what is wrong with our language today and why we have so many disagreements over spelling, grammar, pronunciation, etc etc.
Too many people are more interested in expounding their own narrow views than they are about correctness or "the real way".

Is there in fact a hard and fast rule about when "a" is hard (AH) or soft (AE)?

We have saga and sago, tomato and potato,

Do pet peeves have to be justified or explained?

@Anwulf

I find it somewhat ironic that one who holds strongly to the Germanic roots of the English language and normally vehemently objects to any Mediterranean influences should favour the "SK" pronunciation of "SCH" when the normal Germanic pronunciation is "SH".

Check on www.forvo.com

The French pronunciation is definitely closer to 'daybew' than 'dayboo', as is the normal English pronunciation.

Does having a pet peeve about how certain words are used (or misused) qualify one for membership in the "grammar police"?
So far in this thread I have seen no evidence of anyone claiming that the use of "their" in the given context is wrong, only that it sounded strange.
Based on what I have seen in this forum "descriptivists" can be just as dogmatic and pedantic as "prescriptivists".
Does that mean that they are "the anti-grammar police"?