Urgent email: only one mandatory meeting. No info on place, time. Intraoffice memos or carelessly worded HR announcements in company newsletters that have to be backtracked and reworded over and over. We've all been there, b/c the people doing the writing are not business communicators. 

Too many times, I've had that moment when I've asked the client or supervisor 'who's this really for?' and it's blank stares. It's all based on an assumption that everyone can 'communicate' so it's not a real skill. Companies staff out real work to non-exec assistants, interns, unexperienced 'brand' managers b/c it's 'just Facebook.' See also: why PRs get asked by nonprofits for free work, but they'd never ask an accountant to do their taxes and payroll for nothing. Ahem.

Businesses and their Leaders don't value the discipline like they do Finance, Economics, etc. It's not about the people, understanding their wants/needs; it's all about the company. FWIW that's why I'm looking for something different.