So... what's wrong with the UI?

Answer in less than 50 words on a specific topic. I will cheerfully delete any vague, non-specific replies OR ONES THAT ARE LONGER THAN 50 WORDS

Keep it to the ONE WORST THING THAT YOU HATE ABOUT THE UI

Anything that is too complex or time-consuming or risky or impossible to implement I will address directly.Emphasis : SPECIFIC. Saying "Oh it's confusing and ugly" is the literal opposite of specific, and isn't something I can even begin to think about starting to change.Edit : Sorry Demerzel, but that sort of brain dump is of no use to anyone, and doesn't help me prioritise work at all. No malice meant, just need to keep this thread clean!