RFC-related templates and shortcuts:

Template lowercase rfc- prefix short rfc- prefix Parameters, (req)uired or (opt)ional
{{ArticleDiscussion}} {{articlediscussion}} {{rfc-articlediscussion}} {{artd}} {{rfc-ard}} article name (req)
{{ArticleResult}} {{articleresult}} {{rfc-articleresult}} {{artr}} {{rfc-arr}} article name (req), outcome of RFC (opt)
{{ConductDiscussion}} {{conductdiscussion}} {{rfc-conductdiscussion}} {{ucd}} {{rfc-ucd}} conduct issue (opt)
{{ConductNotice}} {{conductnotice}} {{rfc-conductnotice}} {{ucn}} {{rfc-ucn}} RFC/USER subject's name (req)
{{ConductResult}} {{conductresult}} {{rfc-conductresult}} {{ucres}} {{rfc-ucr}} outcome of RFC (opt)
{{UsernameConcern}} {{usernameconcern}} {{rfc-usernameconcern}} {{uncon}} {{rfc-unc}} nature of objection (opt)
{{UsernameDiscussion}} {{usernamediscussion}} {{rfc-usernamediscussion}} {{und}} {{rfc-und}} name issue in discussion (opt)
{{UsernameNotice}} {{usernamenotice}} {{rfc-usernamenotice}} {{un}} {{rfc-unn}} RFC/NAME subject's name (req)
{{UsernameAllowed}} {{usernameallowed}} {{rfc-usernameallowed}} {{una}} {{rfc-una}} archived RFC's "oldid=#" (opt)
{{UsernameBlocked}} {{usernameblocked}} {{rfc-usernameblocked}} {{unb}} {{rfc-unb}} reason for block (opt)

All of these templates need to be substituted: please use {{subst:template}}, not just {{template}}. All these templates (except {{UsernameBlocked}}) will automatically add your signature, unless you add the optional parameter sig=n.