1. How and where it should be displayed?
It can be displayed alongside the task name e.g.
* TODO My repeated task (DONE=3)...
Here DONE=3 meaning the task has been completed 3 times.
Another way to display is: DONE=3/4, where it means the task is completed 3 times out of 4.
But it is much more complicated because the user can change the repeat duration.
Another thing is to show the longest streak and last streak count, but these are also complicated I believe based on the information that is logged.
2. When it is going to be useful.
It is very motivating to see how many times you have complicated a specific task. It is much like a streak. People would wanna see their statistics to put more effort. I strongly believe "The best way to get better at something is to measure it".

On Tue, Aug 16, 2022 at 9:39 AM Ihor Radchenko <yantar92@gmail.com> wrote:
Abhisek Panigrahi <pnabhisek@gmail.com> writes:

> I would have worked on the patch, but I don't know elisp or lisp language!

Then, you may detail your proposal on how you envision this new
statistics feature: (1) how and where it should be displayed; (2) when
it is going to be useful.

Note that I changed the email subject to bring this thread to the
attention of other Org mailing list members.

If there is sufficient interest, someone else may step up and implement
the feature.

I will probably add this to my todo-list, but my list is very too long
already. I currently prioritize bugs and more widely requested features.

--
Ihor Radchenko,
Org mode contributor,
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