There's a hundred small issues with Jira, but there's one huge one: It's slow. Really, really slow. Atlassian seems to make a lot of money, so I guess they're optimising for something that matters to someone , but from my point of view I have a simple process for evaluating tools: 1) Can I use it at all ? 2) How many of the features I want does it have? I'm pretty sure Jira would score great on the second question, b…
When you go to a page for a ticket, the app has to make multiple backend calls (which likely involve even more backend calls to a directory) to determine what groups you're in and so what you're allowed to do with that ticket and what UI elements to hide or show as a result. By turning off the permission checks, you replace all of this communication with the equivalent of 'return true'.
Unless you're running a multi-department enterprise-wide Jira ($deity have mercy on your soul), you're better off eliminating permissions entirely and controlling access to the instance at the network. In other words, if only your developers need access to it, do not add your developer user group to the various site permissions, set the permission to everyone instead, and ensure only your developer's subnets can touch it in the first place.