Can something be done about this?
Are you a victim of this user(s)? If not, nothing can be done.
I appreciate the snark, though this is unrelated to the flag system hence the Meta − instead of Reputation − topic. It is an issue of spam, not of trust. Though, some can argue the relevance of trust when we're discussing account trading.
Report to moderator.
I elevated the action to this thread since the same thread has already been posted 8 times now.