[knot-resolver-users] Knot Resolver in front of Knot DNS

Apologies if this has been asked before, but I was unable to find informative resources about this topic except this[1]. What are the downsides of having a recursive DNS server in front of an authoritative DNS Server? I'm wondering if all the points listed in the linked article are relevant for small scale installations. Is anyone running such a setup and can share some advice with regards to rate limiting? [1]: https://www.whalebone.io/separate-dns-servers/ -- Alex JOST