I hate

There's no shortage of IT departments who use it as an excuse, but I've worked with several large organisations where they carefully train their IT staff to make sure that a ticket is always logged before work starts - in one case, the training gave an example of an IT staffer walking past a friend's desk and said friend asked them to solve a problem for them - with good reasons.

The good reasons are that those large organisations want to track how many faults their systems encounter/cause, what the impact is and how long it takes to resolve them. They need to track those things so they can spot organisational failure and improve the service.

There's a self-publicising dick of an agile consultant who make a big splash on social media recently with a rant about "Why does anybody use issue trackers? Why don't they just fix the bug and move on?". He was totally wrong and probably knew it but didn't care. Same logic applies.

IT departments who use it as an excuse (and probably don't track anything about their actual performance) are also dicks, of course.