They don’t even qualify as a valid statistical sample.
Between VPNs, ad blockers, privacy‑focused browsers, disabled JavaScript, and server‑side filters against “spam” requests, what you see in your favorite analytics tool is only a small fraction of real traffic, and even that fraction is distorted.
Client‑side vs. server‑side analytics each have pros and cons depending on your goals. Yet most people don’t even realize server‑side analytics exist.