Not everyone uses Facebook. Especially in an attempt to retain web browsing privacy, some people choose to never deal with Facebook, and will use privacy tools to avoid them.
A short list of examples:
AdBlock, PrivacyBadger/EFF, DuckDuckGo PE, Facebook Container. Blocking third-party cookies, workplace/school networks/or at the OS's hosts level.
UBB.threads offers general settings for:
- Post Like Settings - to configure how you want to enable the UBBT Like System within your forums.
- Social/Sharing Settings - to configure social networking features which shares your content with third-parties social networking websites.