Hello, Wix team — there have been discussions about this here and the promise that the option to turn off social also turns off the Pinterest “Save” red icon — but it is still showing up in both my forums.
It seems like, when the Wix team adds something new to the forum app, they forget to add the code for the Pinterest to be turned off on the new item. So, I was happy when it was gone, as I have 2 forums, both of which are fully PRIVATE to the members, and no Pinterest sharing should even be suggested to the members with that icon showing up.
In the screenshot below, you can see it showing up on the profile icons in the “liked” area of a comment on a post. This is happening on my second forum site as well, and also on images that I have added at the top of the forum there.