It was allowed because SRFI 33 was and is withdrawn, and nobody was going to put effort into a withdrawn SRFI. SRFI 142 (also withdrawn) and SRFI 151 (current) are its successors. At that time it was apparently normal to allow early drafts of a SRFI to be in plain text or any sort of markup, including org-mode; only the final draft absolutely had to be HTML.

On Tue, Sep 17, 2019 at 6:24 PM Arthur A. Gleckler <xxxxxx@speechcode.com> wrote:

On Tue, Sep 17, 2019 at 3:19 PM Lassi Kortela <xxxxxx@lassi.io> wrote:

Can we still convert it to HTML? srfi-33.txt is written in org-mode
syntax. There probably exists an org->html package for Emacs.

Yes, definitely. That's clearly against the rules, so I don't understand how the previous editors allowed it. SRFIs 92 and 100 are the same. I've been meaning to fix that, but it has been low on my priority list. If someone else does it first, I will certainly be grateful.