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400 comments total is rookie numbers. You should check out the news posts involving either Russia, China, or Taiwan. Or check out this post where the admins of lemm.ee asked for the users’ opinions of whether to defederate from hexbear.net. There are 1884 comments. (There was once more than 1900 comments, but I guess the mods removed some.)
Please don’t use serif fonts for UI elements. Imagine the buttons on your file manager being Times New Roman. (eww.) I think what you’re looking for is a monospaced font that’s designed to distinguish O/0, I/1/l, etc.
Plug for one of my favorite fonts: https://www.jetbrains.com/lp/mono/