According to Cybernews research team, the only route to a definitive answer is to invoke your GDPR rights if you're in the UK or EU.
ClarityCheck's privacy policy lists a privacy officer contact. Put these questions to them directly:
Do you hold, or have you held, any image of me in the faces or profiles stores?
Was any image of me within the set exposed between [DATE1] and [DATE2]?
What was the source of each image, and which user account submitted it?
Was an Article 34 notification to affected individuals considered, and on what basis was it decided against?
But how do I identify myself to these people, and is it safe to do so …