According to current linguistic
theory, the rules
of language are determined by what is used. So, a sentence is gramatically correct
if a real person
would say it.
As for word usage, the OSPD
gets its words from real dictionaries. Modern
dictionaries get their words from real literature (a practice started by the OED). So, real people use these words. You may not. In fact, you probably don't. Because you're not a Hebrew
scholar, you don't need qoph
, or sheqel
. If you're not a hacker, you're unlikely to use the word blit
. That doesn't mean it's not a word.