Yes. Fair-play checks apply to recruiters and squads, and anti-abuse checks can affect eligibility, ranking, winner selection and claim status. Activity that looks like self trading, wash trading, circular activity or linked wallet farming can be excluded.
Joins from one network are limited, only the wallet's owner can join, and a recruiter's own wallets cannot be linked to their own code. A recruiter can be suspended for scripted or fake squads. The exact triggers are not published.