I will be using the Manifold leaderboard to measure the traders, most likely.
Here is an auto updating page with daily traders.
P.S. Please check the latest version of the leaderboard available at this link, or contact me, before resolving this market (in cases where I'm inactive for 7+ days).
Graph:

The trader counter stops at midnight.
Real traders, real trading only
Related: /strutheo/will-strutheo-get-100000-traders-be
Inspired by @firstuserhere 's market /_deleted_/will-firstuserhere-walk-100000-step
Update 2025-05-02 (PST) (AI summary of creator comment): The Manifold leaderboard will be the definitive source used to measure the number of traders for resolution.
People are also trading
Currently, the number on the Leaderboard is different from the one on your profile. You write you "will be using the Manifold leaderboard to measure the traders, most likely", but in the next sentence you link to your profile. Which one will count?
@strutheo Thanks! I found out the hard way: https://manifold.markets/4fa/by-when-will-chris-strutheo-reach-8#su0i8406sna (Trying to figure out whether to N/A or to reopen with "Leaderboard" in the title.)
I don't know if its just me but the total traders don't appear to update for at least a couple days.