Seems like a lot more effort than it’s worth. Might be fun for few minutes/hours/whatever for a bit of nostalgia but when are you conceivably going to have a use for the data? I don’t see it being worth the time of day, just my opinion.
I’ve often deleted or gotten rid of something I believed to not be useful, only to realize that it had an importance that I did not realize. Keeping your activity, for posterity or not, can be very important.