Earlier quoted context omitted.
The threshold for free API usage for modding tools is being increased from 60 to 100 queries per minute https://mods.reddithelp.com/hc/en-us/articles/16693988535309 There are a very small minority that exceed that even now apparently. Seems not unreasonable to me.
Why is this downvoted? According to the linked article, even the bots which exceed the usage were manually whitelisted to stay free.
• AssistantBOT, AssistantBOT1 - This was broken by the Pushshift API cutoff. It's widely used for tracking sub usage statistics. The author is working on fixing it, but the last update was three weeks ago.
• Flair_Helper (Blank-Cheque) - This makes removing posts easier, especially on mobile. I haven't used it in anger.
• FloodgatesBot (Blank-Cheque) - This applies posting limits for users. There are a couple competitors, but I'm not sure how many are still running.
• Quality_Vote (Blank-Cheque) - This is used to allow users to remove unpopular posts. It can save a lot of moderation work in the right kind of sub.