I don't know if its anti-pattern, but I can say it certainly is awful.
Its a struggle to consistent attach screenshots to tickets. 50% of the time it doesn't work and I have to do a hard refresh.
Sadly it checkboxes all the requires most companies want.
Hard to live without swimlanes.
I had at one time wanted to create my own app on Github called swimmer which added swimlanes.
I had stopped since at the time I didn't know how to best architect the backend. I do now but have moved onto other things
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