I'll give two examples of why I'd never do a blog.
My mother was a county standard golfer and quite besotted with the game. Unfortunately she could never ever see that not everyone shared her passion. I think her shot by shot replay of whole rounds of golf and what her opposing player did put me off the game for life!
There is a target shooter that I know who will recall how he shot a particular card in one competition during the whole small-bore week at Bisley back in the 1960's which resulted in a crap score then and he's still no better nowadays!
What's gone is gone and of no interest unless its a small nugget that you can use yourself at some point in the future!
In target shooting it is recommended that you keep a diary. You record the mistakes you know you made and how you coped well with particularly bad conditions and what did not work. Weather on the day, scores on the day, food & drink consumed, state of mind, nerves etc. You use it privately yourself to remind yourself of what might work in the prevailing conditions on the day, any change in sight settings, filters etc. With a good history you can begin to determine what works best for you and add the odd point to your score. It is probably a good idea if you are close to the top of your sport but I just like to get on and shoot so have never ever kept one! Life's too short and I spent too long keeping records and writing stuff at work!