I thought that way too about deleting done tasks. I stopped doing it, and soon I've ended up with unmanageable todo lists - just too many done stuff (with notes!) to scroll through.
Now I archive done tasks once a week during weekly review. It gives me the sense of "wow, just look at how much I've done over the past week" without bloating my todo lists.
Now I archive done tasks once a week during weekly review. It gives me the sense of "wow, just look at how much I've done over the past week" without bloating my todo lists.