The reason for supporting the flag was so that PlayerX could get the answers from sportsbet they wanted and for sportsbet to take the case seriously, that’s what they were asking for help to do. Had sportsbet supplies answers then I would have removed the flag. The flag helps them take it seriously. Nothing more.
That's an improper use of the flag system, though it's no fault of yours that you were mistaken about the mechanics and intent of it. Educate yourself here:
https://bitcointalk.org/index.php?topic=5153344.0Warning about
scams is different from warning about
possible scams.