From Halopedia, the Halo wiki
I did speak to the folks who made that page. It looks like the images did likely come from your guide, as did all the information about the unreleased nameplates, but the descriptions for the rest were apparently done ourselves, independently. Anyhow, sorry for not obtaining your permission beforehand. That's bad form on our part.
No worries. When that page was being created, there was a lot of discussion going on about it on our Discord, but I was busy with my own projects, so I wasn't paying much attention. I couldn't say, therefore, whether or not your page was actually used as reference during its creation, but either way, it's a useful resource for us to cite anyway. Keep up the good work!