It's only useful with the ModeratorView type. I haven't heard more than just a few using it for anything other than for moderation purposes. It is useful for some type of bots, for example. But I think they should opt in for a solution with the upcoming plugin system (for example a webhook) or with mentions. Polling this endpoint is not very efficient and it is very possible to even miss some comments.

So I think this endpoint should be just for the modview type and authorization should therefore be required.

Or the rate limit should be more fine tunable. There are like only 4 configurable rate limits that encompass all endpoints.