Why so often? I just updated my almost 10 year old PC that had one gpu upgrade in its life, and was still happily playing the 10 year old games I wanted to play.
Then I got the new PC with decent specs and decided to push its limits with some Stardew Valley.
Because quoting in a response provides structure to the response that improves readability.
Also, you are posting on a publicly accessible forum, not having a one-on-one conversation. In that context, that fact that you may remember what you said doesn’t mean that it’s not beneficial to repeat it for others.
The “idiot” comment was unnecessarily rude where someone was engaging in what appeared to be a good faith response, and only brings down the tone of your entire post.