Interesting point, Scott. Adopting JSContact (and deprecating jCard eventually) 
seems a tradeoff between ease-of-implementation for future servers/clients and 
diminishing returns for the current servers/clients. Should the latter 
(diminishing returns) prevent the former (easy-of-implementation)? It may help 
to gauge what other protocols have done in the past when presented with such a 
trade-off.

Jasdip  

On 1/29/21, 8:16 AM, "regext on behalf of Hollenbeck, Scott" 
<regext-boun...@ietf.org on behalf of 
shollenbeck=40verisign....@dmarc.ietf.org> wrote:

    > -----Original Message-----
    > From: regext <regext-boun...@ietf.org> On Behalf Of James Galvin
    > Sent: Monday, January 18, 2021 9:29 AM
    > To: REGEXT WG <regext@ietf.org>
    > Subject: [EXTERNAL] [regext] CALL FOR ADOPTION: draft-loffredo-regext-
    > rdap-jcard-deprecation-03
    > 
    > Caution: This email originated from outside the organization. Do not 
click links
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    > 
    > This is a formal adoption request for “Using JSContact in Registration 
Data
    > Access Protocol (RDAP) JSON Responses”:
    
    While I understand the motivation for this draft, I'm a little worried that 
it's trying to solve a problem that is no longer a problem for anyone who has 
completed a jCard implementation. At this point, RDAP implementations with 
jCard are quite widespread among registries, registrars, and RIRs.  
    
    Yes, we've heard that jCard can be cumbersome or tedious to implement, but 
once that work is done, an implementer has something that works.  Due to the 
nature of the problem domain, it is stable and doesn't require maintenance. 
    
    While an implementation involving jSContact would certainly be more elegant 
from a technical perspective, I see limited value in developing a specification 
that would imply re-doing what has already been implemented to produce 
something that does basically the same thing. There must be some material 
benefit for implementers (of both servers and then clients) to offset the 
development and deployment cost of re-implementing the contact representation. 
Section 2 of the draft describes differences from jCard - are they enough to 
justify this investment?
    
    Scott
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