black mail?

Is there an actual risk of blackmail if you sent someone some stupid convos online?

idk if they know my name, they probably remember my face,. I likely deleted the account though(not associated with my name or face). I got into some fringe ideas and talked about them with a fellow classmate.

probs cant go into politics not that id want to...

Wasn't anything hateful or political even just got into fringe stuff mainly simulation theory and... im not anymore, ect.

What kind of things could someone realistically blackmail you with if you pass med school and become a doctor? is there an actual worry for this(given its nothing genuinely harmful or illegal)