I joined some anti-vaxx Facebook groups to report the most obviously fake posts and periodically the pages themselves.
Now I've been invited to be an admin for one of the largest pages as one of their long-standing and most actively engaged members.
I failed my Maths and English GCSE but have always said I have them both on my CV. When a job offer asks for them, I say I've lost them and they always request I acquire them, but I never have and they just forget once I've started the job, I now almost believe my own lie.