I am not disputing that languages change over time (I am not touching that last one), but that does not mean that pointing out the inconsistencies of new developments are invalid.
It has a regular usage pattern and regular semantic understanding and is tied to a specific region that has its own patterns. It seems to come down to which regional variation is assigned more "prestige" than the others. I happen to think that the lack of a specific second-person plural in most of the other English dialects is deplorable, but that's just me

Illusions fall like the husk of a fruit, one after another, and the fruit is experience. - Narrator, Sylvie
Je suis méchant.
Je suis méchant.

From David Mitchell: Dear America
20/05/2010 03:16:38 PM
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As a non-native Eng-spleaking person...
20/05/2010 03:32:14 PM
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"Could care less is" a personal peeve of mine, too.
20/05/2010 03:43:08 PM
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Mine also
20/05/2010 04:08:23 PM
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Oh, and for the record: the use of "table" as a verb in politics still confuses me for about 5 sec.
20/05/2010 04:38:35 PM
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What a grating accent
20/05/2010 10:41:38 PM
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what grammatical conventions?
20/05/2010 11:11:10 PM
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Subjunctive, reflective pronouns, things like that
20/05/2010 11:26:09 PM
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His main two points had nothing to do with all that, though...
20/05/2010 11:39:28 PM
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I know. I just merely said I disliked the accent and that the divergent dialects were just that
20/05/2010 11:59:25 PM
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How does that apply at all?
20/05/2010 11:43:49 PM
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Different rules for different dialects
21/05/2010 12:03:31 AM
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.... dialects?
21/05/2010 12:06:03 AM
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Yes, dialects
21/05/2010 12:20:09 AM
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Re: Yes, dialects
21/05/2010 12:24:25 AM
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Perhaps
21/05/2010 12:54:49 AM
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Re: Perhaps
21/05/2010 12:56:18 AM
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It really depends
21/05/2010 01:03:13 AM
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Re: It really depends
21/05/2010 01:05:21 AM
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But it isn't inconsistent
21/05/2010 01:14:32 AM
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