Must I be a WG member to write a PR? I'd rather not join for a one-off like this.

@foolip You don't have to be a WG member, but you do have to click OK to an IP agreement, acknowledging that your code & words are being freely contributed, etc.

PS, Thanks for writing this up.

@AmeliaBR, where can I click "OK"? I tried following the "Details" link for the failed check but it looks like an admin view for the repo owner or something.

@foolip: Are you at Opera?
I think the issue is that Opera doesn't have any affiliation with the SVG WG anymore (maybe you should?).
My understanding is that the ash-nazg tool would allow contributions from you without you being a WG member, as long as you have a single Member-affiliation and that member is in the group.

I'll follow this up with @shepazu and get back to you. It may be that someone from Opera needs to join the WG, or you need to fill out one of these forms.

(ip check solved. we just got an improvement earlier today to avoid failing on this type of cases)