Meet new people in your area, absolutely privately using open-source technologies. You're only a few clicks away to find new friends, dating and sexual partners. Looking for a girlfriend, boyfriend, quick hookup, one-night stand or just someone with the same interests? No problem!
These are optional, so it is really nothing that effects the privacy of users who do not chose to use it.
I think that is better not giving support to nonfree shit.
Would be better allowing to use Mastodon/Pleroma/Misskey account or even OpenID.