BigDeal attachment in forum summary

I just received [three.js forum] Summary, as usual. To my surprise there was an attachment linked to it, with a link to a Google Drive document. The document looks like scam, or it might be just a spam. Can someone responsible check what is going on?


It comes from this and this thread (can’t remember which one - but one had a Google Doc with the description attached, instead of text content.)

Not sure why it would be attached to a summary mail though - could be a good idea to remove these threads altogether from the forum.