Why are normal pings anonymous?

Just got out of a game where someone was pinging nonstop. They were only pinging ground, so it didn't show the source. Had to go through the process of elimination to figure out who it was. I reported them, but now I'm wondering if they even are able to look at how many times someone pinged if it doesn't show in the chat.
Best New

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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