Primarily, the first question is if it is technically feasible, so if it is, the RfC can be continued as-is. The RfC is for the raising of account creation limit to 10/day for extended-confirmed accounts.
@Ankit-Maity, @JJMC89, @Mainframe98: Is this a request to change an *existing* configuration setting? That would be Wikimedia-Site-requests and https://meta.wikimedia.org/wiki/Requesting_wiki_configuration_changes .
There is wgAccountCreationThrottle in https://noc.wikimedia.org/conf/InitialiseSettings.php.txt but I do not know how one can add a specific group like extended-confirmed? So if this would require someone to do software development first and contribute a patch, and this would make this patch be listed under #MediaWiki-* and not under Wikimedia-Site-requests.
IIRC this is controlled by wgAccountCreationThrottle, which can't be modified in a way that allows per-group control. It might be possible to change wgRateLimits's configuration for extended-confirmed using createaccount right to accomplish desired behaviour, not sure if that'll work.
Then I'm most likely mistaken - I probably confused wgAccountCreationThrottle with wgRateLimits - I'll restore MediaWiki-Configuration as project, as it's becoming pretty clear that this is a request for a new feature, not a change to existing configuration. Apologies for the confusion!
Thanks everyone for sharing your technical expertise!
@Ankit-Maity: As this has become a request to develop functionality code I have clarified the task summary.
A request to change the (non-existing) configuration setting for a specific wiki must be separate from this task. That request would currently be unactionable, until somebody contributes the missing functionality code first.
But I should be correct in understanding that it is implementable, right? The consensus stands till now for the change and it is entirely logical for such a function to exist, I think it is obvious that all users should not have an upped limit but privileged users should be allowed to. An IP-based limit is not defiant of logic sure, but we need a better solution, which is this.
I'd guess so; in any case someone needs to volunteer and provide a software patch. See https://www.mediawiki.org/wiki/How_to_become_a_MediaWiki_hacker and https://www.mediawiki.org/wiki/Gerrit/Tutorial if you (or someone else) is interested.