it's time to post the Unicode FAQ entry on U+034F COMBINING GRAPHEME JOINER again http://www.unicode.org/faq/char_combmark.html#16 …pic.twitter.com/ut4CVuxBn1
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
So the whole point of CGJ is a workaround for Unicode's incorrect assignment of combining classes and canonical form reordering.
I'm not convinced by this conclusion
See: "insertion of a [CGJ] into a sequence of combining marks will block canonical reordering of those combining marks."
so? I've read that, in its context
you're also omitting other uses mentioned in the faq, so that can't be "the whole point"
OK, there is another, but it's even more of a hack: in-band collation override for foreign words.
That one's awful too because you end up with data littered with invisible chars that make it compare != to its normal spelling.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.