They have ACP servers but they might apply different rate limits or policies if they notice ACP use, while a solution like yours would not trigger that unless it becomes popular enough to specifically detect. It also seems this provides more features them just an ACP server.

> they might apply different rate limits or policies if they notice ACP use

Is there any evidence that supports this claim?

That's a good point, I'll look into tackling this soon

Is there an example of this?