No they won’t.
People can still post their group in LFG without an authenticator.
People can still search for groups in LFG without an authenticator.
It only affects boosters, botters, and spammers. The custom text thing, where it was like “WTS +15 in time, visit my website to get hacked!” That’s what you need the authenticator for now. So unless you were advertising for boosters, botters, or spammers, you have nothing to fret over.