Thanks for commenting!
I apologize for jumping to any conclusions and thank you for the clarification.
No worries, I had only heard of StarLTI once before, but I hadn't looked into it too much. Initially there were a few suspicious things about the site which caused me concern. However, after finding out that Sck had undergone some sort of "rebranding" it makes a lot more sense now.
We do have a rule against grey market trading, but it's more to prevent direct trades within the community and to avoid any scams that can occur because of that. I don't want to stifle discussions about grey market sites since that can definitely be an important topic, so linking to grey market sites is okay.
Edit: But just don't link to them in every post.