So, my team asked me today if it's worth to document the wrong estimation on taks.
For example, If the dev estimate 2 hours for a task, but it took him 8 hours to finish it, this 6 plus hours affects the development estimated hour.. So they asked me if they could document it in the kanbam! I think they shouldn't and they should estimate better those tasks, but I wanted to get skilled opinion, what do you think?