Good work, but a narrow range analysis gives wrong results, especially within 3 days.
Also, there are some factors that need to be considered such as Merit analysis, Mod activity, number of active users will determine the data more accurately.
Also, some data, such as ANN & bounty section of Altcoin boards, should be excluded from the ratios.
It would not be possible since I'm not a pro scraper. I have little knowledge on data sraping but not enough to scrape what you are asking.
Your daily average is wrong: it's 3 days, but you divided the number of posts by 4.
Have taken 31st August instead of 30th because I didn't get any archived data for 30th.
Sample has been taken from 3 individual dates but data range is 4 days, broken down by Ddmrddmr already.