Sadly we are dealing with some completely newbies who don't have any idea how this flag system works or even how to create one.

@Stayzor, answering you in this post, not in the PM because let's help someone else too who doesn't know how to do the same.

You want to create a flag against the account betnomi
[1.] You will need to create a topic [scam accusation topic] where you will provide as many evidence as you can and describe your case. Scam accusation guideline https://bitcointalk.org/index.php?topic=260073.0
[2.] Go to betnomi trust page.
Profile ---------------> Trust : You are here https://bitcointalk.org/index.php?action=trust;u=2532772
Scroll down and look for a link text called "add a flag" https://bitcointalk.org/index.php?action=trust;addflag=2532772
[3.] Everything else are self explaining.

If you find me not responding you quickly, you can just leave your questions for everyone. Many will show you how to do a flag properly.