FYI, the use of "yao" as #1 is not a regional dialect and has absolutely nothing to do with Beijing (I lived in Beijing for 10 years). It is military lingo, much like using "alpha" to substitute letter "a" and "delta" for "d" in the US. The same goes with using "dong" for #0, instead of the normal "ling". And #7 is "guai" or "making a turn". It's military lingo. And speaking English to someone whom you assume/know don't understand English is offensive. An old Chinese saying goes something like "go with the locals", which means adapting yourself to local customs. It shows respect. Forcing your host to accommodate you is also offensive.
Well, here is the thing, when they do use the lingo and I understand it, I have no problem with that. If I don't understand, I will ask and learn. But, when someone understands at what you are saying and pretends they dont, that really bothers me a lot.
On Pissybits point:
"On the subject of Traditional vs. Simplified, I don't think it's a matter of personal preference but rather dependent on what you're used to. If you're from the mainland, you use Simplified, if you're from Taiwan/Hong Kong, you're used to the Traditional rendering. Using either rendering doesn't really change the way the words are used, so I don't see why it really matters unless you're trying to design something with an artistic or historic theme or something. "
That is exactly what I want to say. I do not understand why some linguist would argue that you loose the meaning of a word when you use simplified Chinese. If you are talking about the origin and how the characters have morphed, yes simplified Chinese does loose a bit of the lineage. But the meaning of a word does not change.
For dialect, definitely they have their history and interesting parts to it that worth the study and preservation. I should be a bit more clear about standardize pronunciation. I think in the education system, they should continue to teach courses in the regions dialect and Mandarin in standard pronunciation.
Language itself is a never ending evolution, as we see online, new meaning to words are added frequently and the internet have allowed people to be more connected and standardized meaning of words