https://rfc.fyi/?search=harmful I note that all but two are Informational (for whatever that's worth). > On 10 Dec 2020, at 1:32 pm, Lloyd W <lloyd.wood=40yahoo.co.uk@xxxxxxxxxxxxxx> wrote: > > "The IETF has never been in the business of telling people what they can use" > > there are a large number of RFCs with "Considered harmful" in the title. > > Lloyd Wood > lloyd.wood@xxxxxxxxxxx > >> On 4 Dec 2020, at 05:03, Phillip Hallam-Baker <phill@xxxxxxxxxxxxxxx> wrote: >> >> The IETF has never been in the business of telling people what they can use -- Mark Nottingham https://www.mnot.net/