Okay, here’s the screencap :

GAWS has added a link at the bottom of their post. They do that very often for Gillian’s charity and her own projects, of course. But if you have a few minutes to lose like I seem to have right now, I encourage you to go check GAWS, because first, it’s a gold mine and a good place to hang out when it’s raining on Sunday, and then because there’s all Gillian’s archive. The ONLY project which is not charity or Gillian’s related where they added this link is The Crown. Here are a few examples:

No link to buy this book.

No link to buy tickets

How about her good friend William Vintage? Still no link.

Not even a link to buy her very own David Duchovny’s book. Just the screencap of her tweet.
What I’m trying to say is that Gillian doesn’t run GAWS herself. She doesn’t tell her PR team to put a link on this or this and remove it on this or that. They added this link for The Crown because they had to. Why? I don’t know!