ITT:Things about our languages we

1.Hate.
2.Don't like.
3.Struggle with.
4.Use way too much.
5.Want to be implemented in every language.

1. Verbosity.  Seriously, things that take 80 syllables can be expressed in 50 syllables or less in English.  Words are way too long.
2. Reformed grammar.  Adjective endings for plurals of different genders became one.  Languages should be simplified, but not at the price of losing unambiguity.  Think of the poor parser writers.
3. Non-latin1 symbols.  It's easier after virtually everyone adopted UTF/UCS.
4. Names of some dishes, not to mention that they are almost universally used wrong.
5. Rich slang libraries and applicable obscene combinators.