Here are a few of mine: - Dialogs that display truncated information, but aren't resizable (looking at you, Windows). - File Open/Save dialogs that always ope

Here are a few of mine: - Dialogs that display truncated information, but aren't resizable (looking at you, Windows). - File Open/Save dialogs that always open to the same default location, requiring the user to keep navigating to the same directory over and over. - Information displayed in non-selectable (thus, un-copy-paste-able) form. Generally this is seen more in desktop and mobile apps vs. the web. - Anything that changes what I type without my explicit OK. This includes IDEs with predictive completion, MS Word's on-by-default correction, and mobile devices that auto-capitalize email addresses and automatically add a space after a period... - "Secret Question" drop-downs where none of the questions remotely apply to me - Required fields that shouldn't be, e.g. "Company Name" - Short length limits for site passwords. If you're limiting passwords to (let's say) twelve characters, that strongly suggests that you're storing the password in plain text on your servers (you should be storing a hash). - Excluded punctuation characters for site passwords. This suggests that developer(s) decided "rather than expend the one-time effort to properly sanitize/escape our inputs, we thought we'd just dump the responsibility to exclude our arbitrary list of characters on the users for all time"