Is it even possible to stop Facebook bots from scanning my forum? I don't want them near my site yet every time I ban a Facebook IP address or range, they come up with ten new ones. It seems like a never-ending, annoying task. Same with Amazon too.
Anytime a link to your site is shared on fb it goes out and fetches the content. XF does the same thing as does most any other software. It's harmless.
Yep and it would defeat the purpose of leveraging FB by posting your URL there, by blocking the fetch. It's not a spider or a scraper, FB isn't indexing our content.