I find people who are constantly measuring some metric they're doing well on (and this metric always changes) and then making sure you know about it are covering for some sort of performance problem.
To create and monitor Jira ticket counts, there has the be Jira tickets for management to pay attention to and compare against other employees.
Maybe the employee is gaming the numbers... but there has to be a game to play - and this no different than basing performance reviews on bugs solved or LOC numbers.
management is probably looking at those numbers? Going to be people who change their focus to reflect that attention from above.
For me, it's when the metric they're proud of is always changing from quarter to quarter, and it's rarely the one we agree to focus on. Like they make a basket of six metrics and usually at least one of them is doing well, but never the same one consistently, so they're always talking about the great performance on whatever metric randomly turned up well this month.
It's kind of like the inverse problem of management obsessing too much over particular metrics that don't properly capture the bigger picture, and can also be gamed.