Flag link - https://bitcointalk.org/index.php?action=trust;flag=2128
Reference - https://bitcointalk.org/index.php?topic=5260941.new#new
Here's the problem with your flag: you weren't actually scammed by Boombl4 (were you?). You should have opened the type 1 flag which is a yellow warning flag. The other 2 flags are for people who had an agreement with and lost money to a scammer. No doubt he is a scammer and he deserves the red flag, but you're not one of his victims (from what I can tell).
You can still open a type 1 flag if you want, in which case I will gladly support it.