This is not a question; more an observation from the "site analytics" below. I am surprised/impressed by the regularity of the traffic, which reliably plummets on the weekends, and shows a significant depression over major holidays such as Christmas and New Years. My own interaction is almost the obverse of this activity profile, but that is likely explained by the job profile of the regular contributors.
Site analytics traffic, Nov 2018—Mar 2019
Also notable is how steady-state the traffic appears. This is good news for MathOverflow, as previously there seemed to be a decline in interest (Slight downward trend in Q & A.) At least at the displayed time scale, it appears we are in a healthy steady-state.
Added in response to @StefanKohl's question, 4 yrs of data on posts:
Site analytics posts, Mar 2015—Mar 2019