Are we talking about IT peeves or computer peeves?
I work in IT and, as I posted previously, I don’t care for the restrictiveness that IT does. Some, of course, is useful to everyone: we don’t let users run as administrators. However, if any user needs software installed, we will install it for them – usually using RDP so we don’t have to visit the computer. It takes an extra few minutes of the user’s time, but their computers get fewer problems.
Recently there’s been a change in management, though, and the new regime is much too restrictive on computer security. We’ve been wanting for about a year to use the Windows Remote help function, but they refuse to make certain changes in the firewall to make it work because, despite tons of evidence and reports that it causes no problems, they don’t want to do it until it’s safe. They blocked PDF files, despite the fact that no security expert anywhere considers them a threat (there was a problem with them five years ago, with people spreading viruses using password-protected PDFs. But all antivirus is on to this trick now, and virus writers have moved on to other techniques).
The problem is that the security minded people will always play up the slightest potential threat, even though there’s less than a .000000001% chance of it ever happening (and if it can be easily fixed if it does).
As for computing peeves, mine is downloaders. When you do to a site to download a file, they want you to use their downloading software, installing it on your computer even when you’ll never use this again. Not to mention that every web browser ever invented has downloading capabilities. The user gets nothing of importance and it just clogs up their computer.