They would actually use much more. See [here] ( https://www.reddit.com/r/redditdev/comments/141mjij/lets_talk_about_those_api_calls/). Basically almost everything is an API request. Just loading a post and doing very little you have close to 33 requests. Even if my math was wrong it’s still way too much to pay for per day. Especially if folks are using much more that 1000 API calls per day.
Okay so say I believe you. Why do you think a large majority of third party devs shuttered their projects they worked on for so long if it was just as easy as adding a subscription fee? Why didn’t more of them do it? I know of one that actually implemented a subscription. If folks were actually doing much less than 1000 API calls daily then you’d think most devs would have gone that way right?